Clearance Ultraflex C2 Type 23C Control Cable

The Ultraflex C2 is a universal mechanical engine control cable for compatible inboard, sterndrive and outboard throttle or shift systems. It has an 87mm / 3.4in stroke and must be matched to the exact control-box connection, engine linkage and cable length. Choose from the listed 5ft to 20ft variants.

Product Identification

• Brand: Ultraflex
• Product range: Universal control cables
• Product category: Universal mechanical marine engine control cable
• Model: C2
• Current Shopify title: Ultraflex C2 Type 23C Control Cable
• Store SKU format: AF-4-C2-XX
• Cable style: Universal cable marketed in the supplied UK listing as Type 23C
• Stroke: 87mm / 3.4in
• Available listing lengths: 5ft to 20ft; see exact options below
• Primary application: Compatible inboard, sterndrive and outboard throttle or shift systems using the appropriate accessories
• Official Multiflex cross-reference: EC-033
• Multiflex SKU format: EC-033-XX
• Catalogue type: Type 23C in the supplied UK listing
• Application: Universal with appropriate accessories
• Exact interchangeability: Must be checked from cable ends, stroke and control connection

What Is This Control Cable Used For?

The C2 transfers mechanical push-pull movement between a compatible control box and an engine throttle or shift linkage.

• Compatible universal throttle-control installations
• Compatible universal shift-control installations
• Inboard, sterndrive and outboard engines using the appropriate accessories
• Replacement of an existing C2 cable with matching length, ends and stroke

The Type 23C wording in the supplied catalogue is retained, but it should not be treated as proof that every cable sold under a similar generic name is directly interchangeable.

What Is Included?

The selected Ultraflex C2 cable is supplied with:

• One Ultraflex C2 mechanical engine control cable in the selected length
• Integral cable terminals and end fittings supplied as part of the cable assembly

Not included:

• Mechanical engine control box
• A second cable where separate throttle and shift cables are required
• Control-box connection kit unless expressly stated as part of a separate package
• Engine-side clevises, pivots, clamps or adaptors not integral to the selected cable
• Installation labour and boat-specific mounting hardware

Which Engines and Controls Are Compatible?

Ultraflex lists the C2 for inboard, sterndrive and outboard engines with appropriate accessories. Before ordering, confirm:

• The exact C2 cable-end format matches the control and engine linkage
• The application requires an 87mm / 3.4in stroke
• The selected length reaches the engine or gearbox connection along the complete installed route
• The control-box end and engine end match the required terminal geometry
• The required cable stroke matches the control and engine linkage
• Any control-box or engine-side connection kit is identified before installation
• The cable can be routed without kinks, crushing, heat exposure or interference with moving components

Compare the actual terminals and connection-kit requirements. Do not select the cable solely from the “23C” description.

How Does C2 Compare with C8 and MACHZero?

All three are used in broad universal-control applications, but they are separate Ultraflex cable models.

• C2: Universal cable identified as Type 23C in the supplied UK listing
• C8: Standard universal 33C-style cable with 10-32 UNF threaded rod ends
• MACHZero: High-efficiency universal-style cable with a blue jacket
• All three: Published 87mm / 3.4in stroke
• Selection: Match the cable-end geometry and control connection, not only the stroke

A cable with the correct stroke can still be incompatible if its control-end or engine-end fitting differs.

What Is the Multiflex Equivalent?

Multiflex's official control-cable cross-reference lists the Multiflex EC-033 as the corresponding cable family for the Ultraflex C2. The Multiflex SKU format is EC-033-XX, where XX identifies the cable length in feet.

• Multiflex model: EC-033
• Multiflex cable range: Standard universal 3300 control cable
• Multiflex published travel: 90mm
• Multiflex stated minimum bend radius: 8in / approximately 203mm

This is a manufacturer-published family cross-reference rather than a statement that the two cables are dimensionally identical in every respect. The Ultraflex C2 listing states a stroke of 87mm / 3.4in, while Multiflex publishes 90mm travel for the EC-033. Before substitution, confirm the cable-end geometry, thread, available travel, installed length, bend radius, control-box connection and engine-side connection. Multiflex also advises users to confirm interchangeability before installation.

How Do I Select the Correct Cable Length?

Use the installed cable route and the exact cable-end positions when selecting the length.

• Replacement cable: Check the model and length printed on the existing cable. Where the marking cannot be read, measure the cable from tip to tip and round up to the next whole foot.
• New inboard or sterndrive installation: Measure the unobstructed routed distance A + B from the control to the throttle or shift connection, then round up to the next whole foot.
• New outboard installation: Measure A + B, add 3ft / 90cm for engine movement, then round up to the next whole foot.
• Cable route: Follow the actual installed path rather than a straight-line measurement and allow sufficient space for smooth bends and service access.

An incorrectly short cable can restrict movement or pull against the fittings. Excessive length can create unnecessary bends and increase control effort.

Available Lengths

This Shopify listing contains the following C2 variants:

• AF-4-C2-05: 5ft / 1.52m
• AF-4-C2-06: 6ft / 1.83m
• AF-4-C2-07: 7ft / 2.13m
• AF-4-C2-08: 8ft / 2.44m
• AF-4-C2-09: 9ft / 2.74m
• AF-4-C2-10: 10ft / 3.05m
• AF-4-C2-11: 11ft / 3.35m
• AF-4-C2-12: 12ft / 3.66m
• AF-4-C2-13: 13ft / 3.96m
• AF-4-C2-14: 14ft / 4.27m
• AF-4-C2-15: 15ft / 4.57m
• AF-4-C2-16: 16ft / 4.88m
• AF-4-C2-17: 17ft / 5.18m
• AF-4-C2-18: 18ft / 5.49m
• AF-4-C2-19: 19ft / 5.79m
• AF-4-C2-20: 20ft / 6.10m

Dimensions and Fitment

• Stroke: 87mm / 3.4in
• Listed length range: 5ft to 20ft
• Catalogue type: Type 23C in the supplied UK listing
• Application: Universal with appropriate accessories
• Length unit: Whole-foot cable sizes

Check both ends of an existing C2 cable before ordering. The current product page confirms the application and stroke but does not establish interchangeability with every third-party 23C-labelled cable.

Construction and Design

• Mechanical push-pull control cable
• 87mm / 3.4in operating stroke
• Universal application with the correct accessories
• Whole-foot length options
• Designed for compatible marine throttle and shift systems

Use the exact connection kits and engine-side hardware specified for the control system. Do not modify the cable ends.

Installation and Adjustment

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

Before installation:

• Confirm the exact cable model and selected length
• Place the control and engine linkage in neutral or idle as applicable
• Isolate the engine starting circuit
• Inspect the control box, cable brackets, terminals and engine linkage for wear or corrosion
• Confirm the planned route provides smooth bends and clearance from heat, sharp edges and moving parts
• Identify every connection kit, clevis, pivot or clamp required at both ends

During installation:

• Route the cable with the fewest practical bends
• Do not kink, crush, twist, drill, shorten or modify the cable assembly
• Do not clamp the outer casing tightly enough to deform it
• Keep the cable clear of exhaust components, belts, steering linkages and moving machinery
• Secure the cable outer casing at the specified support points
• Adjust throttle and shift travel independently where two cables are fitted
• Use only the connection hardware specified for the control and engine

After installation, operate the control through its complete range with the engine switched off and confirm that:

• The control moves smoothly through its complete range
• Neutral and idle positions are correctly aligned
• Forward and reverse engage positively without forcing the linkage against its stops
• Full throttle can be selected without over-travelling the engine linkage
• The cable does not bind, pull tight or contact another component
• All cable terminals, clamps, pins and retainers remain secure
• Outboard engine steering and tilt movement do not stretch or kink the control cables

Do not operate the boat if the control is stiff, neutral cannot be identified positively, a cable is damaged or any terminal or retainer is loose.

Maintenance and Replacement

Inspect the complete control-cable installation regularly and before extended use.

• Check the cable jacket for cuts, abrasion, crushing, swelling or heat damage
• Inspect exposed terminals, pins, clevises and clamps for corrosion or wear
• Check that the cable remains supported without tight or distorted clamps
• Confirm that throttle and shift movement remains smooth and accurately adjusted
• Replace a cable that is kinked, seized, abnormally stiff or mechanically damaged
• Do not attempt to repair a damaged push-pull cable by straightening, splicing or welding it

Frequently Asked Questions

Is the C2 a Type 23C cable?

The supplied UK Shopify listing markets it as Type 23C. Exact replacement compatibility must still be confirmed from the cable ends and stroke.

What is the stroke?

The Ultraflex C2 has an 87mm / 3.4in stroke.

Can it be used on outboards?

Yes, where the engine, control and required accessories are compatible.

Is C2 the same as C8?

No. They have the same published stroke and broad application, but they are different cable models with different terminal specifications.

Can the existing cable length be copied?

Yes, where the existing installation is correct and the model and length marking can be read. Otherwise measure tip to tip.

What is the Multiflex equivalent?

Multiflex lists the EC-033 as the cross-reference for the Ultraflex C2. Use the EC-033-XX format, where XX is the cable length in feet. Confirm interchangeability for the exact control, engine, cable travel, terminals and route before installation.

Key Features

• Ultraflex C2 universal control cable
• Current Shopify title retained as Type 23C
• 87mm / 3.4in stroke
• Suitable for compatible inboard, sterndrive and outboard systems
• Available in the listed 5ft to 20ft variants
• One cable operates one throttle or shift function
• Connection accessories depend on the control and engine
• Exact cable-end compatibility must be confirmed
• Official Multiflex cross-reference: EC-033
• Multiflex SKU format: EC-033-XX
• Cross-reference compatibility must be confirmed before installation