Oils, Fluids and Sealer› Oils, Fluids and Additives

SIERRAMARINE

MAX PERFORMANCE GEAR LUBE - 5 GALLO

$325.03

SKU: S08C 18-9610-5

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

Sierra 18-9610-5 Oil & Lubricants SAE 85W-90. Heavy Duty Lubricant for Sterndrive and Outboard Racing applications. Safeguards critical components and ensures long-lasting performance. Resists breakdown at elevated temperatures to maintain performance. Prevents horsepower loss. High-strength additives and tackifiers form a durable oil film for protection. Reduces metal-to-metal contact. Delivers maximum protection under the most demanding marine conditions. Normalized SKU: 1896105 UPC Code: 808282398163.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandSIERRAMARINE
Part NumberS08C 18-9610-5

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy