Payment Plans Available For Orders $100+ 💵

4 Stroke Oil

4 Stroke Oil

Protect your engine and maximize performance with our 4 stroke oil, engineered for durability, smooth operation, and long-lasting protection. Designed for high-heat, high-stress riding conditions, it helps reduce wear, improve engine efficiency, and maintain clean performance over time. 


Motul 5100 Ester Oil 4T 10W50 4L Motul 5100 Ester Oil 4T 10W50 4L
from $22.32
from $22.32
Features: Synthetic Blend with Ester Formulated to meet the latest manufacturers' specifications Ensures anti-wear and gear protection as well as optimum clutch performance Both cost effective and...
Motul 5100 Ester/Syn Engine Oil 10W40 Motul 5100 Ester/Syn Engine Oil 10W40
from $22.32
from $22.32
Synthetic Blend with Ester Formulated to meet the latest manufacturers' specifications Ensures anti-wear and gear protection as well as optimum clutch performance Both cost effective and performan...
Motul 300V Competition Synthetic Oil 4T 15W50 Motul 300V Competition Synthetic Oil 4T 15W50
from $36.97
from $36.97
Features: Racing 100% Synthetic w/Ester Core Technology Provides extra power by minimizing engine internal friction Ensures oil pressure and shear stability Outstanding extreme pressure and anti-w...
Motul 300V 10W40 Motul 300V 10W40
from $36.97
from $36.97
Features: Racing 100% Synthetic w/Ester Core Technology Provides extra power by minimizing engine internal friction Ensures oil pressure and shear stability Outstanding extreme pressure and anti-w...
Yamalube 10W-40 4T Engine Oil Yamalube 10W-40 4T Engine Oil
from $12.57
from $12.57
Yamaha 10W-40 Blended Mineral Oil   Elevate your riding experience with Yamaha 10W-40 Blended Mineral Oil, the premium choice for 4-stroke engines across motorcycles, ATVs, UTVs, Side-by-Side vehi...
Pro Honda GN4 4-Stroke Motor Oil 20W-50 32 oz.
$9.99
$9.99
$0.00
Pro Honda GN4 4-Stroke Motor Oil 20W-50 32 oz. Details Honda set the standard for motorcycle oil with GN4 way back in 1975. GN4 uses the highest-quality base stocks and an additive package designed...
Pro Honda HP4 4-Stroke Motor Oil 20W-50 Quart
$12.99
$12.99
$0.00
Pro Honda HP4 4-Stroke Motor Oil 20W-50 Quart  Details Per JASO standards, HP4’s extraordinary additive package provides: Increased antifoaming Higher viscosity for better stability over a broader...
Pro Honda Full Synthetic SAE 10W30 SJ 4-Stroke Motorcycle Oil Quart
$14.99
$14.99
$0.00
Pro Honda Full Synthetic SAE 10W30 SJ 4-Stroke Motorcycle Oil Quart Details  Genuine Honda Product, OEM Part Number: 08C35-SYN-1030M Honda's HP4S Full Synthetic Motorcycle Oil delivers the ultimat...
Search On! Search On!
FIND YOUR PRODUCT 🔎

Search On!

Please notice that many of our items are not available on our online store.

Please Call 626-974-9468 to check our complete inventory.

Contact Us!

Please fill out the form below

Need to get in with contact us sooner? Give us a call at 626-430-9468.

We are open 7 Days a week!

Mon-Sat 10am-7pm PT // Sun 11am-6pm PT
Payments Plans Available | $100+

Pay in 4 interest-free payments or monthly installments up to 12 months.

In-store Pickup Available!

CA local? In-store pickup is available usually within 24 hours or less!

Family Owned & Operated

Since 1959 Bert's has remained family owned and operated!

Bert's Mega Mall | Parts Store

Bert's Mega Mall has been family owned and operated since 1959 and we have earned over 250+ awards from manufacturers, consumers and our local community. Imagine a "Big Box store" with a small store mentality, welcome to Bert's! Bert’s Mega Mall continues to be a standard in power sports world with our industry leading inventory, selection, and more!"

Quick links

© 2026, Berts Mega Mall
  • American Express
  • Apple Pay
  • Discover
  • Google Pay
  • Mastercard
  • Shop Pay
  • Visa