CUB CADET throttle cable 38.5" OEM replacement 946-05131A — exact-fit for RZT/ZT/ZTX models, factory routing

The CUB CADET 946-05131A is a 38.5-inch OEM throttle cable engineered to restore smooth throttle control on compatible Cub Cadet zero-turn and riding mowers.

If your mower’s throttle response feels sluggish or the original cable has frayed, choosing an exact-fit OEM replacement helps maintain performance and safety. This genuine Cub Cadet cable is built to match factory routing and specifications so you avoid fitment issues that generic cables can cause. Below you’ll find concise answers to common buyer questions, exact fit notes, and practical details to confirm compatibility before purchase.

Which Cub Cadet models will this 946-05131A throttle cable fit?

This cable replaces earlier numbers and is specified for a wide range of Cub Cadet RZT, ZT and ZTX models. Always cross-check your machine’s parts diagram or owner’s manual before ordering to ensure correct routing and attachment points.

• Replaces prior part numbers: 946-05131, 746-05131A, 746-05131.
• Fits RZT series: RZT-L46, RZT-L50, RZT-L54, RZT-LX46 FAB, RZT-LX50 FAB, RZT-LX54 FAB.
• Fits RZT-S and RZT-SX: RZT-S50, RZT-S54, RZT-SX54 FAB.
• Fits ZT and ZTX models: ZT1-50 FAB, ZT2-50/54/60 FAB, ZT3-60 FAB, ZTX5-48/54/60 FAB, ZTX6-48/54/60 FAB.

How does this OEM cable compare to aftermarket options?

Because it’s a factory replacement, the 946-05131A mirrors the original cable’s length, end fittings, and sheath routing, reducing installation hassles and the need for modification. Aftermarket alternatives may vary in end hardware, sheath thickness, or internal core quality, which can impact throttle feel and longevity.

• Exact OEM geometry for correct lever and carburetor linkage alignment.
• Factory-grade materials for reliable flex and reduced stretch.
• Better chance of trouble-free installation versus non-specific cables.

What should I check before ordering to ensure correct fit?

Confirm the mower model and year against your owner’s manual or the parts fiche. Measure the installed cable if possible to match the 38.5-inch length and inspect the ends for matching ball, barrel, or clevis fittings. If uncertain, compare the OEM part number on your old cable to 946-05131A or the prior numbers listed.

• Verify model name (RZT, ZT, ZTX) and mower deck size in your manual.
• Measure end-to-end cable length and inspect end connectors.
• Match original part numbers: 946-05131A, 946-05131, 746-05131A, 746-05131.

How do I install the replacement throttle cable safely?

Installation typically involves removing the seat or dash trim to access routing, detaching the old cable at the throttle lever and engine linkage, routing the new cable along the factory path, and securing all clips. If you’re not comfortable with small mechanical tasks, have a certified technician or dealer install it to ensure correct adjustment and safe operation.

• Follow factory routing to avoid binding or sharp bends.
• Secure clips and fasteners; adjust free play per the manual.
• Test throttle travel and engine response before mowing.

Who is this for: This genuine Cub Cadet replacement cable is aimed at owners of compatible RZT, ZT and ZTX series mowers who want a direct-fit OEM part to restore original throttle performance. It’s ideal for DIY mechanics who prefer exact-fit replacements, dealers servicing customer machines, or anyone replacing a damaged or worn throttle cable to recover crisp throttle response and reliable operation.