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SKU:
NLT1R00884
Ships for free in 2–4 business days.
Arctic Cat Big-Pin Drive Clutch Cam Arm Repair Kit 4639-674
$22.99
In Stock
$22.99
Sale price
$22.99
Regular price
Big-pin drive-clutch cam-arm repair kit replacing Arctic Cat 4639-674 on compatible fixed-pin six-tower primary clutches using the matching 0646-747 pin.
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
- Compatible 2005–2017 Arctic Cat Bearcat models with the matching six-tower clutch
- Compatible 2005–2017 Arctic Cat Crossfire models with the matching clutch
- Compatible Arctic Cat F-Series and M-Series snowmobiles with pin 0646-747
- Compatible Arctic Cat Pantera and T-Series models with the matching primary clutch
- Compatible Arctic Cat XF and ZR models using the same fixed-pin clutch design
Product Overview
Rattling, uneven engagement, erratic shift-out, or visible weight-arm play can point to worn cam-arm pivots, but clutch springs, rollers, weights, bushings, belt condition, alignment, and engine mounts can produce similar behavior. This kit is for the newer fixed-pin clutch design, not every Arctic Cat primary clutch.
The repair parts renew the pivot area that guides the clutch weights. Fitment depends on the six-tower clutch casting and the approximately 2.26-inch-shank 0646-747 pin arrangement; model lists are only a guide because clutches are often swapped during prior repairs.
Key Features & Performance
- Repairs cam-arm pivot wear in matching big-pin primary clutches
- Cross-references Arctic Cat 4639-674
- Intended for compatible fixed-pin six-tower clutch assemblies
- Supports more consistent weight movement after the clutch is correctly rebuilt
Replaces Part Numbers
- 4639-674
- 0646-747
Common Uses
- Repairing loose or worn drive-clutch weight pivots
- Correcting a known cam-arm hardware failure
- Rebuilding a six-tower clutch during belt and bushing service
- Replacing damaged fixed-pin components before they wear the clutch tower
Technical Specifications
- Product Type: Drive Clutch Cam-Arm Repair Kit
- Clutch Style: Compatible fixed-pin six-tower primary clutch
- Pin Reference: 0646-747
- Pin Shank Length: Approximately 2.26 in
- Condition: New aftermarket
Installation & Fitment
- Remove the clutch with the correct puller and use a rated clutch-compression fixture
- Confirm casting style, tower count, pin length, weights, and spring before disassembly
- Inspect rollers, bushings, sheaves, belt, and alignment while the clutch is apart
- Follow Arctic Cat torque and retention procedures; stored clutch-spring energy can cause serious injury
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.
Model, production date, serial number, electrical or fuel-system version, dimensions, installed options, and previous repairs can affect fitment. Compare the original part and application information before purchase.
Frequently Asked Questions
Q: Does 4639-674 fit every Arctic Cat snowmobile in the listed families? A: No. The installed clutch design and pin dimensions decide fitment, especially after a previous clutch swap.
Q: Can I service the clutch without a compression tool? A: Do not improvise. The primary spring stores substantial energy and requires the correct fixtures and procedure.
Q: How do I confirm fitment before ordering? A: Match the original reference number where available, then compare the removed part, dimensions, connections, mounting details, model, serial or production information, and package photos.
Q: Is this an original-equipment part? A: No. This is a new aftermarket part. Brand names and reference numbers are used only to identify compatible applications.
Part Summary
keywords: Arctic Cat 4639-674 repair kit, big pin clutch cam arm, 0646-747 clutch pin, six tower primary clutch repair, Arctic Cat weight arm bushing, snowmobile clutch rattle repair
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.