3854127 + 3850426 U-Joint & Exhaust Bellows 2-Piece Set · Fits Volvo Penta / OMC SX cone-clutch select, Replaces 18-2765, 18-1074

3854127 + 3850426 U-Joint & Exhaust Bellows 2-Piece Set · Fits Volvo Penta / OMC SX cone-clutch select, Replaces 18-2765, 18-1074

GHMarine 2-piece bellow set for select Volvo Penta / OMC SX cone-clutch assemblies — BOM 3854127 × 1 (U-joint / driveshaft bellows) + 3850426 × 1 (cone-clutch exhaust bellows). U-joint crosses 18-2765, 89200, 9-72707, 85127P; exhaust crosses 18-1074, 89190, 9-72711, 85426P. This is a GHMarine internal combination — not a factory parent kit and not a complete transom rebuild kit (e.g. packs that also include shift bellow / bearing / gaskets).

Order this set only when both 3854127 and 3850426 hit the same drive EPC. Need the 1-inch inlet hose too → GH 19B3001 (adds 3852352). Need one bellow only → GH 18B5002 (U-joint) or GH 17B1010 (exhaust).

Which set is this?

It is two rubber bellows sold together: one U-joint / driveshaft bellow and one cone-clutch exhaust bellow. Count two bellows in the carton — no water inlet hose, shift bellow, gimbal bearing, or gasket pack is claimed in this BOM.

It is not the three-piece set with 1-inch inlet (GH 19B3001), not U-joint-only (GH 18B5002), not exhaust-only (GH 17B1010), not early Cobra clutch-dog exhaust 914036 (wrong exhaust for a 1986–1993 whole-set claim), not AQ 876294 / 876631 families, and not a full 18-2772-1-style rebuild kit.

Signs you need both bellows

• U-joint bellow (3854127 / 18-2765) and cone-clutch exhaust bellow (3850426 / 18-1074) are both cracked or collapsing on the same SX cone-clutch haul-out — and you do not need a new 1-inch inlet hose.
• EPC lists both 3854127 and 3850426 on the same drive — buy one 2-piece set instead of two singles.
• You almost ordered GH 19B3001 but your 3852352 inlet hose is still good — use this dual-bellow page instead.
• Divert: need inlet too → GH 19B3001. One bellow only → 18B5002 / 17B1010. Early Cobra with exhaust 914036 → not this set.

Will it fit my drive?

This 2-piece set is Compatible with select Volvo Penta / OMC SX cone-clutch assemblies only when both 3854127 and 3850426 apply. Representative intersection band is about 1994–1998 SX cone-clutch rows — confirm both OEMs on the same EPC. Do not order from a U-joint-only year band (e.g. a wide 1986–2006 tag) or from an early OMC Cobra clutch-dog 1986–1993 whole-set claim (that era's exhaust is typically 914036, not 3850426).

*Representative intersection band. Final fit = both OEM numbers on the same EPC. Not a positive whole-set fit for OMC Cobra clutch-dog 1986–1993 (exhaust 914036 era). Not for AQ 876294 / 876631.

OEM & swap numbers

BOM: 3854127 × 1 (U-joint) + 3850426 × 1 (exhaust). U-joint crosses 18-2765, 89200, 9-72707, 85127P. Exhaust crosses 18-1074, 89190, 9-72711, 85426P.

Wrong part? Read before you order

• NOT the three-piece set with 1-inch inlet — that is GH 19B3001
• NOT U-joint-only — that is GH 18B5002 (3854127)
• NOT exhaust-only — that is GH 17B1010 (3850426)
• NOT early Cobra exhaust 914036 sold as this whole set
• NOT shift bellow 911826 or gimbal-bearing kits
• NOT inlet hose 3852352 (GH 18H1005)
• NOT a complete transom rebuild kit (shift + bearing + gaskets)
• NOT a MerCruiser three-bellow kit

What ships in the box

• 1 × U-joint / driveshaft bellows (3854127)
• 1 × Cone-clutch exhaust bellows (3850426)
• Clamps when supplied — confirm against package

Gallery note: some photos may show a single exhaust bellow for shape reference. The sold BOM is two bellows — U-joint + exhaust. Count both before install; do not expect a water inlet hose in this carton.

Often ordered with related SKUs

• Need inlet hose too → GH 19B3001
• U-joint only → GH 18B5002
• Exhaust only → GH 17B1010
• 1-inch inlet only → GH 18H1005

Install tips for both bellows

SX cone-clutch U-joint and exhaust bellow service. Cold engine; support the boat and drive; disconnect battery; follow the OMC / Volvo Penta procedures for each bellow. These jobs usually require removing the sterndrive and using the adhesive / expander method in the manual. Confirm both OEMs before you open the pack.

1. Confirm EPC lists both 3854127 and 3850426 on the same assembly — if only one matches, buy the single page instead.
2. Lay out both bellows; identify U-joint vs exhaust by shape / old-part comparison.
3. Replace each bellow per the drive-removal / adhesive procedure; seat clamps if supplied.
4. Reassemble; check seating and leaks at both positions before returning the boat to service.

FAQ

How many parts are in this set?

Two bellows: 3854127 U-joint and 3850426 exhaust. No 3852352 water inlet hose.

Is this the same as 19B3001?

No. 19B3001 adds the 1-inch inlet hose 3852352. This page is bellows only.

Will this fit OMC Cobra clutch-dog 1986–1993 as a whole set?

No. That era typically uses exhaust 914036, not 3850426. Do not buy this dual set from a 1986–1993 whole-set year tag.

Is this a complete transom rebuild kit?

No. It is two bellows only — not shift bellow, bearing, or gaskets.

What if I only need the exhaust bellow?

Order GH 17B1010 (3850426 only).

Do photos show both bellows?

Some gallery shots are single-bellow shape references. The carton quantity is two — count U-joint + exhaust.

Please note

Aftermarket replacement by GHMarine. Not affiliated with engine manufacturers named above. "Compatible with", "Replaces", and cross-ref numbers identify the 3854127 / 3850426 families — always confirm both OEMs on the same EPC and carton contents (2 bellows) before ordering.