Fully synthetic GL4+ gear oil, for use on the street or the track
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! We Price Match - Give Us A Call or Chat!
Brand:
ES#:
3170913
Mfg#:
20012
In Stock
34% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$21.95
This product was last offered at the strikethrough price on 05-07-2026
High performance GL4/5 gear oil for extended oil change intervals and extreme loads
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! We Price Match - Give Us A Call or Chat!
Brand:
ES#:
4142893
Mfg#:
22090
In Stock
36% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$28.95
This product was last offered at the strikethrough price on 06-02-2026
Technosynthese Semi-synthetic high performance GL-4 / GL-5 gear oil specially recommended for hard to shift gearboxes
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
261389
Mfg#:
317011
In Stock
5% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$15.72
This product was last offered at the strikethrough price on 02-18-2026
Mineral based GL5 gear oil, for use on the street or the track
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! We Price Match - Give Us A Call or Chat!
Brand:
ES#:
3097303
Mfg#:
20010
In Stock
18% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$14.95
This product was last offered at the strikethrough price on 05-07-2026
Helps to reduce driveline shock loads by allowing the clutch to slip slightly during engagement
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms *General Purpose / Universal Item - May require slight modifications to fit your application*
Brand:
ES#:
2828677
Mfg#:
FCV-2000
Ships in 7 Business Days
15% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$228.99
This product was last offered at the strikethrough price on 06-02-2026
Technosynthese Semi-synthetic high performance GL-4 / GL-5 gear oil specially recommended for hard to shift gearboxes
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
4057150
Mfg#:
105782
In Stock
5% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$15.72
This product was last offered at the strikethrough price on 04-20-2026
Max-Gear is recommended for use in front or rear open differentials, manual transmissions, and lower gear units of marine engines that specify use of an API GL-5 or GL-4 fluid
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Whether you're doing a manual transmission service or a major overhaul, ECS Tuning has the manual transmission parts, transmission seals, and transmission fluids you need. Get original equipment transmission parts or name-brand aftermarket manual transmission parts that fit right and work as expected.
