Oil | Filter Change Kit 2.5L | 6.2L Inboard Engines | 4Boats

New service kit service kit for the compatible Mercruiser applications listed below. Use the reference numbers 835440 and MerCruiser #35-866340Q03 Everything you need for a complete oil service in one kit - saves time and ensures correct parts Keep your inboard engine running smoothly - available from 4boats.co.uk with fast UK delivery to confirm fitment before ordering.

Key Features

• Service Kit for the listed marine application
• Supplied as 1 item
• Cross-reference information included for fitment checking
• New replacement part supplied by 4Boats

Technical Specs

Compatibility / Fitment Guide

routine service of popular petrol inboard engines. 5 L Rock 15W/40 MP4 Sport Marine Oil (≈1.1 imp gal / 1.32 US gal) OEM-quality oil filter - secure fit and reliable protection Formulated to protect against wear, corrosion and thermal breakdown under demanding conditions Fits 2.5L and 3.0L inline 4-cylinder petrol inboard engines Fits 5.0L, 5.7L and 6.2L V8 petrol inboard engines Compatible with MerCruiser, Volvo Penta, OMC, Indmar, PCM, Marine Power, Yamaha and more

Fitment check required: match the original part number, engine model and the physical dimensions or connections before ordering. Model names alone are not always sufficient.

Part Number Cross Reference

Frequently Asked Questions

How do I confirm compatibility?
Compare the original part number and the physical part with the information and images in this listing.

Is this supplied as a genuine Mercruiser part?
No, unless the product title explicitly states otherwise. This listing is for a replacement part.

Should installation be carried out professionally?
Use the engine manufacturer’s workshop procedure. If you are unsure, ask a qualified marine engineer.