Engineered Marine Products Transom Service Kit 61-08397, Replaces 30-803097T1, Fits Mercruiser R, MR, Alpha One Drives

The Engineered Marine Products Transom Service Kit (61-08397) is a complete bellows and gimbal bearing service kit for Mercruiser sterndrive units, built to restore a watertight, properly aligned transom assembly during routine drive service or bellows replacement. The kit is a direct replacement for OEM part 30-803097T1 and fits Mercruiser R, MR, and Alpha One drives (1983-90, S/N 6225577 and up) as well as Alpha One SS drives (1986-89, S/N OA 545004 and up).

Inside the kit you get the two core wear components that fail most often during a transom service: a gimbal bearing (cross-referencing to OEM 30-60794A4 and 30-60794A2) that supports the drive shaft and must be replaced any time the bellows are serviced, and a U-joint bellows (cross-referencing to OEM 60932A4) that seals the U-joint area against water intrusion. The kit's components carry a machined exterior finish for a precise, factory-style fit. Weighing 4.583 pounds and measuring 12 x 6 x 6 inches as packaged, the kit is sized for a standard transom service job without requiring separate part-by-part ordering.

Specifications

• Brand: Engineered Marine Products
• Manufacturer Part Number: 61-08397
• Kit Type: Transom Service Kit (Bellows Kit)
• Weight: 4.583 pounds
• Product Dimensions: 12 x 6 x 6 inches
• Exterior Finish: Machined
• UPC: 840080483375
• Kit Contents: Gimbal Bearing (18-2100), U-Joint Bellows (18-2751)
• Gimbal Bearing Cross-Reference: 30-60794A4, 30-60794A2
• U-Joint Bellows Cross-Reference: 60932A4

Fitment

• Mercruiser R, MR, Alpha One (1983-90), S/N 6225577 and up
• Mercruiser Alpha One SS (1986-89), S/N OA 545004 and up

Replaces (OEM)

• 30-803097T1

Frequently Asked Questions

What does the Engineered Marine Products transom service kit 61-08397 include? Kit 61-08397 includes a gimbal bearing (18-2100) and a U-joint bellows (18-2751), the two components typically replaced together during a Mercruiser transom service.

Which Mercruiser drives does this kit fit? This kit fits Mercruiser R, MR, and Alpha One drives (1983-90, S/N 6225577 and up) and Alpha One SS drives (1986-89, S/N OA 545004 and up).

What OEM part number does 61-08397 replace? Transom service kit 61-08397 replaces OEM Mercruiser part 30-803097T1.

Is the gimbal bearing in this kit compatible with OEM part numbers? Yes, the gimbal bearing included in kit 61-08397 cross-references to OEM part numbers 30-60794A4 and 30-60794A2.

What OEM number does the U-joint bellows in this kit cross-reference to? The U-joint bellows included in kit 61-08397 cross-references to OEM part number 60932A4.

How much does the 61-08397 transom service kit weigh? The kit weighs 4.583 pounds as packaged.

What are the packaged dimensions of this kit? Kit 61-08397 measures 12 x 6 x 6 inches as packaged.

Is this a genuine Mercruiser part or an aftermarket kit? 61-08397 is an Engineered Marine Products kit, an aftermarket equivalent to OEM part 30-803097T1, not an original Mercruiser-branded kit.

Do I need to replace both the gimbal bearing and U-joint bellows during a transom service? Kit 61-08397 bundles both the gimbal bearing (18-2100) and U-joint bellows (18-2751) because both are commonly serviced together on Mercruiser R, MR, and Alpha One drives.

What finish do the components in this kit have? The components in the 61-08397 kit have a machined exterior finish.

Will this kit fit an Alpha One SS drive? Yes, kit 61-08397 fits Mercruiser Alpha One SS drives from 1986-89 with S/N OA 545004 and up.

What is the UPC for this transom service kit? The UPC for Engineered Marine Products transom service kit 61-08397 is 840080483375.