OEM: OMC 582453, 583380

The Sierra 18-0164-9 Thermostat Housing Gasket is interchangeable with the following: GLM 31340, Evinrude/Johnson 3789161, Mallory 9-60074, OMC 311069, 3789161, Volvo Penta 3852096, Yamaha YSC-13080-00-0C, GM 3789161. Each Sierra product meets or exceeds the original equipment part it replaces.

The Sierra 18-0854-9 Thermostat Cover Gasket is interchangeable with the following: Chrysler/Force/US Marine 27-F476067, GLM 37410, Yamaha 64D-14384-01-00. Each Sierra product meets or exceeds the original equipment part it replaces.

Zerk fitting allows you to lubricate the back and front bearing by pushing out old grease while supplying new grease. All kits include: bearings, sales, dust cap, cotter key, and lug nuts or bolts. Compatible with a 5 Stud application and has a 1750 pound capacity. Fits bearings 1-3/8” inner and 1-1...

NGK Standard Spark Plug is manufactured to enhance the performance of the vehicle. It is constructed from durable material that is corrosion and abrasion resistant. The spark plug insulators are made of 99 percent pure alumina silicate, allowing for longer insulator noses for reduced fouling. This s...

NGK 5044 Iridium Spark Plugs - BR8EIX

The Sierra 18-2864-9 Powerhead Base Gasket is interchangeable with the following: GLM 33640, Evinrude/Johnson 342513, 321727, Mallory 9-60413. Each Sierra product meets or exceeds the original equipment part it replaces.

Increased performance with World's smallest Iridium Center Electrode (0.4mm). To increase ignitability, the important point is to let the flame kernel produced by the spark to grow unobstructed. Normally, this can be accomplished by widening the spark gap. However, this causes spark voltage to incre...

OEM: OMC 581731

OEM: OMC 581726

The Forney 54810 heat shrink connector ring terminal #10 stud, 10-12 AWG crimp and seal is color coded tubing with wire gauge imprint that provides easy identification. Seam is brazed together with a solder alloy for outstanding wire contact, increased current flow and tensile strength. Forney Indus...

Sierra universal spark plug boot. Sierra Part #18-5750-9.