Maxima V-Twin VTTOCK14 Complete Engine Oil Change Kit - Full Service

Our review of the Maxima V-Twin VTTOCK14 kit finds it best suited for Harley-Davidson owners who want a single package to service the engine, transmission and primary on All Twin Cam motorcycles. The biggest reason to buy is convenience: the kit supplies the specific oils and a premium HiFloFiltro oil filter designed for 2000-2015 Twin Cam models, so a full 6 quart service can be completed without sourcing separate products. It is a practical, workshop-friendly choice for routine maintenance and riders who prefer a dedicated motorcycle oil blend over generic car oils.

Key Features

• Fitment: Designed to fit Harley-Davidson All Twin Cam motorcycles 2000-2015, which minimizes compatibility guesswork for common V-Twin models.
• Complete quantities: Includes 4 quarts of 20W-50 engine oil, 1 quart primary fluid and 1 quart 85W-140 transmission oil so a typical full service can be performed immediately.
• Engine oil formulation: The Maxima V-Twin Full Synthetic 20W-50 uses ester-based technology to reduce operating temperature and increase film strength for extended protection.
• Durable filter: The included HiFloFiltro HF171BRC premium oil filter claims longer service life than OE filters and features a 17mm cross-drilled nut for easy installation and lock wiring.
• Transmission and primary fluids: High-quality mineral-based transmission and primary oils are included for reliable gearbox protection and primary chaincase performance.

Who It's For

This kit is aimed at DIY owners and independent shops that service Harley-Davidson Twin Cam models such as Electra Glide, Street Glide, Road King, Softail and Dyna from 2000 through 2015. Riders who value convenience and want a matched package of engine oil, transmission oil, primary fluid and a premium replacement filter will find the kit especially useful.

Those who need fully synthetic transmission or primary fluids should note the kit includes mineral-based transmission and primary oils; if fully synthetic fluids are required for a particular build, buyers should look for separate synthetic-spec products instead.

Pros & Cons

Pros

• Convenient all-in-one kit supplies all oils and a premium filter for a complete service.
• Engine oil is an ester-based full synthetic engineered to lower temperatures and boost film strength.
• HiFloFiltro filter offers easy removal and longer claimed service life compared to OE.
• Transmission fluid is formulated for high-performance 4-, 5- and 6-speed gearboxes.

Cons

• Transmission and primary fluids are mineral-based rather than fully synthetic, which some customers note as a limitation.
• Some buyers reported missing small items such as O-rings, so check contents before starting a job.

Specifications

Our Verdict

The VTTOCK14 kit is a sensible value for Harley owners who want a ready-to-use service pack that combines an ester-based full synthetic engine oil with quality transmission and primary fluids plus a premium filter. It saves time sourcing parts and is well suited to routine maintenance, though those seeking fully synthetic transmission or primary fluids should plan to buy alternatives.

Frequently Asked Questions

Will this kit fit my Twin Cam Harley?
Yes, it is specified for Harley-Davidson All Twin Cam models from 2000 through 2015, covering common Electra Glide, Street Glide, Road King, Softail and Dyna variants.

Are all fluids fully synthetic?
No, the engine oil is an ester-based full synthetic 20W-50, while the transmission and primary fluids included are mineral-based formulations.

Does the kit include replacement O-rings?
The kit includes oil and a filter but customers have reported mixed experiences about small items like O-rings, so inspect the package and have spares on hand before starting the job.