This Pro Marine 1500K engine rebuild kit is designed for Johnson and Evinrude 90 HP through 140 HP V4 crossflow outboard engines produced from 1976 through 1988. These engines use the classic OMC crossflow V4 platform with a 3.500 inch bore.

This complete rebuild kit includes the essential internal components needed to restore compression, reliability, and performance when rebuilding a worn or damaged powerhead. It is commonly used during full engine overhauls, compression repairs, or major powerhead service on older OMC V4 crossflow motors.

Available Bore Size Options

This engine rebuild kit is available in multiple bore sizes depending on your cylinder condition after machining.

Always confirm the final cylinder bore size with your machine shop before ordering pistons or rebuild kits.

Compatibility

This rebuild kit fits OMC V4 crossflow outboard engines used in Johnson and Evinrude 90 HP, 100 HP, 115 HP, and 140 HP models built between 1976 and 1988. These engines use a 3.500 inch bore crossflow block and are commonly found on mid size fishing boats, bass boats, and recreational runabouts.

Application Chart

Engine Model Compatibility

Fits OMC V4 crossflow outboard engines with a 3.500 inch cylinder bore. These engines were widely used across the Johnson and Evinrude 90 through 140 horsepower lineup in the late 1970s and 1980s.

What Is Included

• Piston kits
• Piston rings
• Wrist pin bearings
• Connecting rod bearings
• Main crankshaft bearings
• Crankshaft seal kit
• Complete powerhead gasket set
• Rod bolts
• Additional required internal engine bearings and seals

Part Numbers and Cross References

Common cross reference numbers associated with this rebuild kit include:

• 1500K
• 1520K
• 1530K

What This Kit Is Used For

This rebuild kit is used when performing a complete powerhead rebuild on Johnson or Evinrude V4 crossflow engines. Typical rebuild situations include low compression, piston failure, cylinder damage, or high engine hours.

Marine technicians and engine builders use kits like this when restoring older OMC outboards or bringing high hour engines back to reliable operating condition.

FAQ

What engines does this rebuild kit fit?
This kit fits Johnson and Evinrude V4 crossflow engines rated between 90 and 140 horsepower produced from 1976 through 1988.

What bore size does this kit use?
The engine platform uses a 3.500 inch standard bore. Oversize piston kits are available if your cylinders require machining.

Does this kit include pistons?
Yes. The kit includes piston assemblies along with rings, bearings, seals, and a full powerhead gasket set.

Will this fit looper engines?
No. This kit is designed specifically for the earlier OMC V4 crossflow engine design and will not fit later looper engines.

Dealer Discounts

Are you in the marine industry? Pro Marine offers wholesale pricing and dealer discounts for marine repair shops, boat dealers, marinas, and parts retailers.

If your business regularly purchases outboard engine parts, we invite you to apply for a Pro Marine dealer account.

Apply for a Dealer Account

Contact Pro Marine
Phone 941-721-3000
Contact Us Online

Shipping Policy

• Free shipping on orders over $100
• Continental United States only
• Orders ship via UPS USPS or FedEx
• Orders placed before 5:30 PM EST typically ship the same day
• Most deliveries arrive within 1-5 business days

Searchable Part Numbers

Pro Marine Part
1500K

Common Searches
Johnson 90 rebuild kit
Evinrude 140 rebuild kit
OMC V4 crossflow rebuild kit
Johnson Evinrude 90 115 140 rebuild kit
OMC 3.500 bore rebuild kit