MAXIMA SKU: 78-99931

Maxima V-Twin Oil Change Kit - SYN OIL Change KIT M8 Black Filter

$498.000,00
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NOT SURE ABOUT FITMENT?

Maxima V-Twin synthetic oil change kit for Milwaukee-Eight engines, containing everything needed for a complete oil change: Maxima synthetic motor oil, drain plug O-ring, black ProFilter spin-on filter, and ProFilter wrench. Meets or exceeds OEM specifications without voiding your warranty.

Features

  • Synthetic motor oil included
  • Drain plug O-ring included
  • Black ProFilter Premium spin-on filter
  • ProFilter wrench for easy filter removal
  • M-Pleat filter technology extends filter life 20-30%
  • Silicone anti-drain back valve

Specifications

  • Brand: Maxima
  • Manufacturer Part #: 90-129018PB
  • UPC: 851211007919
  • Length: 11.5 in
  • Width: 10.75 in
  • Height: 10.5 in
  • Weight: 18.4 lbs

Fitment

Fits Harley-Davidson Milwaukee-Eight (M8) engines.

Frequently Asked Questions

What's included in this kit?

Synthetic motor oil, drain plug O-ring, black ProFilter spin-on filter, and ProFilter wrench for filter removal.

Will this void my Harley warranty?

No — this kit meets or exceeds OEM specifications and will not void your new vehicle warranty.

How much longer does the ProFilter last compared to a standard filter?

The M-Pleat filter design extends filter life by 20-30% due to increased filtration area and contaminant capacity.

Can I buy this kit with a chrome filter instead of black?

Maxima offers this same kit in both chrome and black filter finishes — check part numbers to select your preferred finish.

Do I need any additional tools beyond what's in the kit?

The ProFilter wrench is included. You'll need basic hand tools, a drain pan, and jack/lift to access the drain plug.

BRANDMaxima
TYPETools
SKU78-99931
WEIGHT18.4 lb
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
4.68
199 RATINGS
5★ 157
4★ 30
3★ 6
2★ 2
1★ 4
✓ VERIFIED
Jan 9, 2026

All in one

Everything in the kit is great although I did have to order another quart of primary oil as my primary goes for 38 ounces

— Gordon H
✓ VERIFIED
Jul 26, 2025

Oils changed

Did not have Primary cover gasket that was needed. Did not have enough Primary oil, motorcycle required 38 oz., only got 32 oz.. Had to go purchase more.

— Joe K
✓ VERIFIED
May 7, 2023

I ring for primary case too big,no gasket for primary inspection plate.Other than that fine

— DAVID S
✓ VERIFIED
Nov 14, 2022

I have a 2014 streetglide ,<br /><br />There wasn’t enough primary oil , (you need 2quarts) actually to be specific you need 38 oz a quart is 32 had to go to Harley pay $20 for a quart

— Anonymous
✓ VERIFIED
Apr 24, 2026

Watched a YouTube video and changed the three (3) hole fluids and filter myself. Easy and saved a few bucks by doing it myself.

— Daniel G
✓ VERIFIED
Jan 31, 2026

👍🏼👍🏼👍🏼

It’s an oil change kit.

— Stephen C