Timing Belt for Mercury Mariner Outboards

Maintain the performance and reliability of your Mercury or Mariner outboard with this premium-quality aftermarket Timing Belt, manufactured to OEM specifications for a precise fit and dependable operation.

The timing belt is a critical engine component that synchronises the crankshaft and camshaft, ensuring accurate valve timing for optimum engine performance.

Fits Mercury & Mariner Outboards

4-Stroke Models

Carburettor & EFI Engines

75 HP
80 HP
90 HP
100 HP
115 HP

Replaces Mercury / Mariner Part Number

57-804145

OEM part numbers are used for reference only.

Features

Premium marine-grade aftermarket timing belt
Manufactured to OEM specifications
Direct replacement
High-strength reinforced construction
Excellent wear resistance
Reliable valve timing
Suitable for both carburettor and EFI engines
Long service life

Why Replace Your Timing Belt?

A worn timing belt may cause:

Poor engine performance
Difficult starting
Loss of power
Incorrect valve timing
Engine damage if the belt fails

Replacing the timing belt at the recommended service interval helps maintain engine reliability and can prevent costly repairs.

Why Buy From SSI Marine?

Premium marine-grade aftermarket parts
Workshop-tested by SSI Marine
UK stock ready for immediate dispatch
Same working day dispatch before 1 PM (Monday-Friday)
Royal Mail Tracked 24 delivery
Technical support from experienced outboard specialists
Collection available from our Leigh, Manchester workshop

Buyer Responsibility

Please check your engine model, serial number and existing part number before ordering.

Although this timing belt fits many Mercury and Mariner engines, there are different belt types used across the range.

If you are unsure, send us your engine model and serial number and we will be happy to confirm compatibility before purchase.

Mercury Mariner Outboard 75 HP 80 HP 90 HP 100 HP 115 HP 4 Stroke Timing Belt 57-804145