Ultraflex B14 Throttle & Fuel Shut Off Engine-Stop Engine Control Cable

The Ultraflex B14 is a manual mechanical control cable for compatible engine-stop, fuel shut-off, throttle, choke and release linkages. It has an integrated black T-handle, a solid stainless-steel inner cable, a brass panel-mount housing and a 70mm / 2.8in operating stroke. Each B14 is supplied with an L13 stop collar and L14 cable clamp with shim for universal mounting. Select the required length from the available 5ft to 32ft options.

The 18ft, 19ft, 26ft and 28ft options are non-stocked special-order sizes with an average stated lead time of approximately five weeks.

Product Identification

• Brand: Ultraflex
• Product range: Mechanical engine control cables
• Product category: Manual engine-stop and fuel shut-off cable
• Model: B14
• Supplier part-number format: 4-B14-XX
• Manufacturer part number: Varies according to cable length
• Length code: XX identifies the nominal cable length in feet
• Available supplier-listed lengths: 5ft to 32ft
• Primary application: Mechanical engine stop and fuel shut-off
• Additional applications: Compatible throttle, choke, starter and release linkages
• Control type: Integrated manual T-handle
• Handle colour: Black
• Operating stroke: 70mm / 2.8in
• Inner cable: Solid stainless steel
• Panel housing: Brass
• Maximum stated panel thickness: 32mm / 1.26in
• Mounting type: Universal panel mounting
• Cable diameter: Supplier-listed as 7mm
• Included cable-end fitting: Ultraflex L13 stop collar
• Included casing support: Ultraflex L14 cable clamp with shim
• Optional mounting accessory: Ultraflex K68 recessed bulkhead support
• Official Multiflex cross-reference: EC-020
• Additional cross-reference: SeaStar / Morse CC343 through the Multiflex reference chart
• Cable quantity: One complete B14 cable assembly

What Is the Ultraflex B14 Used For?

The Ultraflex B14 provides direct manual control of a compatible mechanical engine or equipment linkage through its integrated T-handle.

It is principally used for:

• Inboard-engine fuel shut-off
• Mechanical engine-stop controls
• Diesel-engine stop levers
• Compatible petrol-engine shut-off linkages
• Choke or starter controls where the cable travel and fittings are suitable
• Manual release mechanisms
• Compatible throttle linkages requiring a manually operated 70mm cable
• Replacement of an existing Ultraflex B14 with matching length and fittings
• Replacement of a compatible CC343 or EC-020 installation after full fitment checks

The B14 does not include a conventional remote-control box. The T-handle forms the operator control and directly moves the solid inner cable.

The cable should not be selected by engine brand alone. Compatibility depends on the operating stroke, mounting arrangement, cable length, connection hardware and the force required to operate the linkage.

How Does the T-Handle Control Work?

The black T-handle is integrated into the panel-mount end of the B14 cable.

Moving the handle produces linear movement at the opposite cable end. Depending on the linkage arrangement, the cable can operate a mechanical stop lever, fuel shut-off lever, choke, starter control or other suitable mechanism.

Before installation, confirm:

• Whether the mechanism must be pushed or pulled to operate
• Which handle position represents run, stop, open or closed
• Whether the full linkage movement is within the B14's 70mm stroke
• Whether the controlled mechanism automatically returns when released
• Whether the handle must remain in the selected position
• Whether the linkage requires additional return springs or retaining hardware
• Whether the cable can transmit the required operating force

Do not assume that every fuel shut-off or throttle linkage uses the same movement direction.

What Is Included?

The selected Ultraflex B14 cable is supplied with:

• One B14 cable in the selected length
• Integrated black T-handle
• Solid stainless-steel inner cable
• Brass panel-mount housing
• Ultraflex L13 stop collar
• Ultraflex L14 cable clamp block / saddle clamp
• L14 mounting shim

The Ultraflex B14 product page identifies the L13 and L14 components as included with the cable.

Not included:

• Ultraflex K68 recessed bulkhead support
• Engine or equipment control lever
• Engine-specific stop-lever bracket
• Additional clevis, pivot or ball joint
• Additional cable support brackets
• Electrical engine-stop solenoid
• Electrical emergency kill switch
• Remote throttle-and-shift control box
• Second control cable
• Boat-specific mounting screws, nuts or washers not supplied with the fitting kit
• Installation labour

Which Engines and Linkages Are Compatible?

Ultraflex describes the B14 as suitable for throttle, fuel shut-off and other compatible mechanical-control applications. Its Italian product description specifically identifies inboard-engine stopping as the primary intended use.

The B14 may suit:

• Mechanically stopped inboard diesel engines
• Inboard petrol engines with a compatible manual stop linkage
• Generator engine-stop controls
• Fuel injection-pump shut-off levers
• Mechanical choke linkages
• Compatible starter or decompression controls
• Manual release mechanisms requiring similar linear travel
• Selected throttle applications where a T-handle control is appropriate

Before ordering, confirm:

• The required cable stroke does not exceed 70mm
• The linkage accepts the B14 cable-end arrangement
• The linkage can be connected to the supplied L13 stop collar
• The outer cable can be secured using the L14 clamp and shim
• The T-handle can be installed through the selected panel
• The panel thickness does not exceed 32mm
• The selected cable length follows the complete installed route
• The controlled mechanism does not require more force than the cable can safely transmit
• The cable does not require an unlisted engine-specific adaptor
• The selected installation provides a positive and reliable engine-stop action

No numerical maximum push or pull load is published in the available B14 product data.

Can the B14 Be Used as a Throttle Cable?

Ultraflex lists throttle as one of the B14's possible applications. However, the B14 is a manually operated T-handle cable rather than a conventional dual-action throttle-and-shift cable.

Use it for a throttle application only where:

• A T-handle control is appropriate
• The throttle requires no more than 70mm travel
• The linkage movement and operating direction are compatible
• The engine manufacturer permits the proposed control arrangement
• The handle and linkage provide safe idle and full-throttle positions
• The throttle returns or remains in position as required
• The cable does not bottom out before the throttle reaches its mechanical stop

The B14 should not replace a conventional remote throttle cable solely because its length appears suitable.

What Is the Multiflex Equivalent?

Multiflex's official control-cable cross-reference identifies the:

• Multiflex model: EC-020
• Multiflex part-number format: EC-020-XX
• SeaStar / Morse cross-reference: CC343
• Ultraflex cross-reference: B14

The Multiflex EC-020 is published for mechanical throttle, engine-stop and fuel shut-off applications.

Published Multiflex EC-020 specifications include:

• Cable travel: 75mm
• Conduit diameter: 7mm
• Inner member: 1.9mm lubricated stainless-steel solid wire
• Minimum bend radius: 8in / approximately 200mm
• Outer jacket: Black
• Part-number suffix: Nominal cable length in feet

The EC-020 is the official Multiflex family-level alternative to the B14, but direct interchangeability must still be confirmed.

How Are the B14 and EC-020 Different?

The principal published difference is the cable travel:

• Ultraflex B14 stroke: 70mm / 2.8in
• Multiflex EC-020 travel: 75mm / approximately 3in

A 5mm difference in published travel may affect whether the stop lever, choke or throttle linkage reaches its complete operating position.

Ultraflex B14:

• Integrated black T-handle
• Brass panel housing
• Solid stainless-steel inner cable
• L13 stop collar included
• L14 cable clamp and shim included
• 70mm stroke
• Optional K68 recessed bulkhead support

Multiflex EC-020:

• 75mm published travel
• 7mm conduit
• 1.9mm lubricated stainless-steel solid-wire inner
• Historical Multiflex data associate the cable with K3 and K12 fittings
• Current retail package contents should be confirmed

The EC-020 must not be treated as an automatically interchangeable B14 replacement without checking both mounting ends, the handle arrangement, usable travel, length and associated hardware.

Which Cable Lengths Are Available?

UK supplier data list the Ultraflex B14 in lengths from:

• Minimum listed length: 5ft / approximately 1.5m
• Maximum listed length: 32ft / approximately 9.8m

The exact manufacturer part number changes with the selected length.

• 4-B14-05: 5ft B14 cable
• 4-B14-14: 14ft B14 cable
• 4-B14-22: 22ft B14 cable
• 4-B14-XX: XX identifies the nominal length in feet

Only the lengths displayed as selectable product options should be assumed available from the seller.

How Is the Correct Cable Length Selected?

For a replacement installation, first check the model and length marked on the existing cable.

Where the marking cannot be read:

• Confirm that the removed cable is an Ultraflex B14 or verified equivalent
• Measure the complete installed cable route
• Follow the route around bulkheads, machinery and structural components
• Measure to the actual panel and linkage connection positions
• Allow enough length for broad, gradual bends
• Allow access for fitting and future servicing
• Avoid choosing unnecessary excess length
• Select the next suitable available cable length rather than a cable that is too short

The conventional add-3ft outboard throttle-cable rule should not automatically be applied to a fixed inboard B14 installation.

What Does the 70mm Stroke Mean?

The Ultraflex B14 has a published operating stroke of 70mm / 2.8in.

Stroke is the available linear movement between the cable's two operating limits. The selected linkage must operate completely within this movement.

A cable of the correct length can still be unsuitable if the required linkage travel exceeds 70mm.

What Is the Minimum Bend Radius?

Ultraflex's current B14 product page does not publish a numerical minimum bend radius.

The 8in / approximately 200mm bend radius belongs to the Multiflex EC-020 specification and should not automatically be assigned to the B14.

For the B14:

• Use the largest practical bend radius
• Minimise the number of bends
• Avoid sharp changes in direction
• Do not kink or flatten the cable casing
• Keep the cable route free from side loading
• Do not coil unnecessary cable tightly
• Ensure the handle and engine-side terminal remain aligned with the direction of movement

Panel Mounting and Maximum Thickness

UK supplier data specify the B14 brass housing for panels up to 32mm / 1.26in thick.

Before drilling the panel, confirm:

• The panel is structurally sound
• The handle remains accessible
• The handle can complete its full stroke without obstruction
• The panel thickness suits the supplied brass housing
• The rear of the installation provides sufficient cable clearance
• The cable can leave the panel without an immediate tight bend
• The mounting point does not interfere with electrical wiring or pipework
• The handle position is clearly identifiable during an emergency stop

The handle should be positioned where it can be reached quickly but cannot be operated accidentally.

What Is the Optional K68 Support?

The Ultraflex K68 40895B is an optional recessed bulkhead support designed specifically for the B14 cable.

• Overall face diameter: 88mm / 3.5in
• Required cut-out diameter: 70mm / 2.7in
• Depth: 40mm / 1.6in

The K68 is sold separately and is not included with the standard B14 cable.

Dimensions and Fitment

• Operating stroke: 70mm / 2.8in
• Supplier-listed cable diameter: 7mm
• Panel-housing material: Brass
• Inner cable material: Solid stainless steel
• Maximum panel thickness: 32mm / 1.26in
• Handle type: Integrated black T-handle
• Length range: 5ft to 32ft
• Approximate metric length range: 1.5m to 9.8m
• Included stop collar: L13
• Included cable clamp: L14 with shim
• Optional recessed support: K68
• B14 numerical minimum bend radius: Not published
• Maximum push or pull load: Not published

Is the B14 a Gear-Shift Cable?

No. The B14 is primarily an engine-stop and fuel shut-off cable and is also listed for compatible throttle and other manually operated functions.

It is not published as a standard forward-neutral-reverse gearbox cable.

Can the B14 Be Used as a Steering Cable?

No. The B14 is a mechanical engine or equipment control cable. It is not a rotary steering cable, rack-and-pinion steering cable, hydraulic steering hose or steering link arm.

Construction and Design

• Integrated black T-handle control
• Solid stainless-steel inner cable
• Brass panel-mount housing
• 70mm / 2.8in operating stroke
• Universal panel-mount arrangement
• L13 stop collar supplied
• L14 cable clamp and shim supplied
• Multiple cable lengths
• Suitable for compatible mechanical stop and shut-off linkages
• Optional recessed K68 mounting support
• Cable diameter listed as 7mm by current suppliers
• No published numerical maximum working load
• No published B14-specific minimum bend radius

The solid inner cable transmits movement between the handle and controlled linkage. The outer casing must remain securely supported so that handle movement is converted into cable-end movement rather than casing movement.

Installation and Adjustment

Mechanical engine-stop and throttle controls are safety-critical. Installation should be completed by a competent marine technician.

Before installation:

• Confirm the cable is an Ultraflex B14
• Confirm the selected cable length
• Verify the required 70mm operating stroke
• Identify the linkage's push or pull direction
• Check the maximum panel thickness
• Confirm whether the supplied universal mounting parts or optional K68 are required
• Inspect the engine-stop, throttle or choke linkage
• Confirm that all required engine-side hardware is available
• Isolate the engine starting circuit
• Place the controlled linkage in its normal run, idle or released position

During installation:

• Install the T-handle housing squarely through the panel
• Secure the panel housing without distorting it
• Fit the L14 clamp and shim so that the outer cable casing remains stationary
• Fit the L13 stop collar in the required position
• Maintain broad, smooth cable bends
• Keep the cable clear of exhaust components
• Avoid sharp edges, belts, pulleys and moving machinery
• Support the cable without crushing its casing
• Keep the cable end aligned with the linkage movement
• Do not bend, cut, weld or shorten the cable assembly
• Do not use the cable to compensate for a misaligned bracket
• Ensure pins, clips, nuts and retainers are securely fitted

After installation, confirm that:

• The T-handle moves smoothly
• The handle completes its full intended travel
• The engine-stop or fuel lever reaches both required positions
• The cable does not reach its internal limit before the linkage
• The linkage is not forced beyond its mechanical stop
• The outer casing remains stationary
• The cable does not bind
• The handle position clearly corresponds with run and stop
• The engine stops reliably when the control is operated
• The linkage returns to the run position when required
• All clamps, collars, pins and retainers remain secure

Do not operate the vessel if the engine-stop function is uncertain or the cable is stiff, damaged or incorrectly adjusted.

Maintenance

Inspect the complete B14 installation periodically and before extended use.

• Check the T-handle, brass housing and panel mounting
• Inspect the L13 stop collar
• Inspect the L14 clamp and shim
• Check the casing for abrasion, cracking, crushing or heat damage
• Inspect the solid inner cable for corrosion or distortion
• Check engine-side pins, clips and brackets
• Test full engine-stop or fuel shut-off operation
• Confirm correct return to the normal running position
• Check clearance from moving or hot components
• Inspect the optional K68 support where fitted

Replace the cable if it becomes stiff, kinked, corroded, crushed, mechanically damaged or unable to complete its 70mm travel.

Do not attempt to repair a damaged cable by straightening, welding, splicing or injecting unapproved lubricant into the casing.

Frequently Asked Questions

What is the Ultraflex B14 used for?

It is primarily used as a manual engine-stop or fuel shut-off cable. Ultraflex also lists compatible throttle and other mechanical-control applications.

Does the B14 include a handle?

Yes. It has an integrated black T-handle at the panel-mount end.

What is the B14 cable stroke?

The published stroke is 70mm / 2.8in.

Which fittings are included?

The B14 is supplied with an Ultraflex L13 stop collar and an L14 cable clamp with shim.

Is the K68 recessed support included?

No. The K68 40895B is an optional accessory sold separately.

What panel thickness can the B14 fit?

UK supplier data state that the brass housing suits panels up to 32mm thick.

Which lengths are available?

Supplier data list B14 cables from 5ft to 32ft. Select the required length from the available product options.

What is the Multiflex equivalent?

Multiflex officially cross-references the EC-020 to the Ultraflex B14.

Are the B14 and EC-020 identical?

This should not be assumed. The B14 has a published 70mm stroke, while Multiflex publishes 75mm travel for the EC-020.

Can the EC-020 directly replace the B14?

Only after confirming cable travel, mounting, handle arrangement, both cable ends, installed length and all retaining hardware.

What is the SeaStar or Morse cross-reference?

Multiflex's chart associates the EC-020 and B14 family with the CC343 reference.

Is the B14 a gearbox shift cable?

No. It is not published as a standard forward-neutral-reverse shift cable.

Can the B14 be used as a throttle cable?

Ultraflex lists throttle as a possible application, but suitability depends on the linkage, required 70mm travel, operating direction and control arrangement.

Is there a published minimum bend radius?

Ultraflex's current B14 product page does not state one. The 8in figure belongs to the Multiflex EC-020 and should not automatically be applied to the B14.

Is a maximum cable load published?

No numerical maximum push or pull load is stated in the available B14 product data.

Key Features

• Ultraflex B14 manual engine control cable
• Designed primarily for engine stop and fuel shut-off
• Suitable for compatible throttle, choke, starter and release applications
• Integrated black T-handle
• 70mm / 2.8in operating stroke
• Solid stainless-steel inner cable
• Brass panel-mount housing
• Suitable for panels up to 32mm thick
• Universal mounting arrangement
• L13 stop collar included
• L14 cable clamp and shim included
• Available in supplier-listed lengths from 5ft to 32ft
• Approximate metric length range of 1.5m to 9.8m
• Optional K68 recessed bulkhead support
• Supplier-listed 7mm cable diameter
• Official Multiflex cross-reference: EC-020
• Multiflex part-number format: EC-020-XX
• SeaStar / Morse reference: CC343
• B14 stroke differs from EC-020 published travel
• Cross-reference compatibility must be confirmed before installation
• Not a standard gearbox shift cable
• Not a steering cable
• One complete B14 cable supplied
• Maximum push or pull load not published

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