TOM'S Twist-Lock Spring Oil Filler Cap Returns: The Heritage Remake JZ Builders Have Been Waiting For

One of the most copied, most counterfeited, most "if you know, you know" pieces of JZ engine jewelry is officially back from TOM'S Racing — and PMD is shipping the limited heritage remake in Silver, Red and Blue.

If you have ever opened the hood of a clean JZA80 Supra, a JZX100 Chaser or a tucked-and-tidy IS300 and felt your eye lock onto a small anodized cap on the valve cover — you already know what this is. The TOM'S Twist-Lock Spring Oil Filler Cap has been one of the most quietly iconic engine dress-up pieces in JDM history for almost three decades. It got discontinued. It got faked. It got resold on auction sites for absurd money. And now, TOM'S has done the right thing and brought it back as a true heritage remake — with the original twist-lock spring mechanism and the original colorways intact.

Shop the TOM'S Heritage Remake Oil Filler Cap →

A Quick Refresher on TOM'S Racing (Because It Matters)

TOM'S stands for Tachi Oiwa Motor Sport. The company was founded in 1974 by Nobuhide Tachi and Kiyoshi Oiwa, and within a year Toyota Motor Corporation had officially recognized it as an authorized tuning house. From its garage in the Tama area of Tokyo, TOM'S went on to become Toyota's de facto factory-backed performance arm — building championship-winning Super Formula and Super GT cars, supplying engines, and producing some of the most respected street parts ever bolted to a Toyota.

That is the lineage on this cap. This is not a generic billet knock-off. It is a part with a serial-numbered place in TOM'S' own catalog history, made by the people who actually built it the first time.

Why the Twist-Lock Oil Cap Became a Cult Piece

Three reasons. All of them still hold up today.

1. The mechanism is genuinely different. Most aftermarket oil caps are threaded billet — pretty, but functionally identical to OEM. TOM'S engineered a spring-loaded twist-lock design that seats with a quarter-turn and an audible click. It is the kind of detail you feel every single time you check the oil, and it is the single biggest reason owners keep these caps through three or four engine swaps.

2. The fitment hits the heart of the JDM tuning world. The cap is sized for the 1JZ-GTE, 1JZ-GE, 2JZ-GTE, 2JZ-GE and 4A-GE 20-valve — which is to say, almost every chassis the late-'90s and 2000s tuning scene was built on. Supra, Aristo, Soarer, Chaser, Mark II, Cresta, Crown, Altezza, AE111 — if you have ever wanted one of these cars, you have wanted this cap.

3. It was discontinued at exactly the wrong time. TOM'S retired the original years ago, right as the global JZ scene exploded. Clean, real examples started clearing $400–$700 on auction sites. Counterfeits flooded the marketplaces. Builders shooting for points at shows like Wekfest, Offset Kings and Final Bout were paying collector money to keep one on the cam cover. A factory-correct remake at the original price point was overdue.

What's in the Heritage Remake

TOM'S did the remake correctly. This is not a "design inspired by" reissue — it is the original part, produced again, with the original spring-loaded twist-lock action and the original three anodized colorways from the catalog:

• Heritage Silver — the OG. The one in every old Option and REV Speed magazine spread.
• TOM'S Red — the matching piece for the entire TOM'S Red strut-bar / cam-cover ecosystem.
• TOM'S Blue — the rarest of the three originals, and historically the first to sell out.

Sold individually. Limited production run. Once this batch is gone, it is gone again.

Fitment at a Glance

• Toyota Supra — JZA70 (1JZ / 7M), JZA80 (2JZ-GTE / 2JZ-GE)
• Toyota Aristo — JZS147, JZS161 (2JZ-GTE / 2JZ-GE)
• Toyota Soarer — JZZ30, JZZ31 (1JZ-GTE / 2JZ-GE)
• Toyota Chaser / Mark II / Cresta — JZX90, JZX100, JZX110 (1JZ-GTE)
• Toyota Crown — JZS171 Athlete V (1JZ-GTE)
• Lexus IS300 / Altezza AS300 — JCE10 (2JZ-GE)
• Lexus GS300 — JZS147, JZS160 (2JZ-GE)
• Toyota Corolla Levin / Sprinter Trueno — AE111 BZ-R (4A-GE 20V "Black-Top")

If you are building anything in the JZ or 4A-GE 20V family, this cap fits. If you are not sure about a specific year or market variant, send us your chassis code through the PMD contact page and we will confirm before you order.

Collectibility: Why You Should Not Wait

There are three categories of TOM'S parts in 2026: still produced, NLA forever, and occasional limited remakes. The Twist-Lock cap belongs squarely in the third bucket. Previous remake attempts from other catalogs sold through in days, and original NOS examples routinely close above $500 on Yahoo Auctions Japan. A factory-direct $195 remake, with correct mechanism and correct colors, is the floor — not the ceiling — of where this part will sit in collector value over the next few years.

If you have ever told yourself "I'll grab one next time it comes back," this is the next time.

Why Buy It from PMD

PMD: Premier Motoring Development is a U.S.-based authorized TOM'S Racing dealer out of Jacksonville, Florida. That means:

• Authentic stock direct from TOM'S — no grey market, no questions about whether it is the real spring-loaded mechanism.
• 30-day returns, the same as everything else we sell.
• Nationwide U.S. shipping with tracked, insured packaging.
• Real JDM and VIP support — we speak the language. We can talk you through the rest of the TOM'S catalog (strut bars, exhaust, suspension) if you are building a full theme.

Build the Rest of the Bay

The Twist-Lock cap is the keystone piece, but it lives best when the rest of the bay matches the era. A few related PMD builds and pages worth a look:

• Shop the full TOM'S Racing collection at PMD →
• Weds Maverick 709M — the period-correct mesh wheel for JZ-powered VIP and street builds
• JDM engine dress-up parts — caps, covers, plug covers, expansion tanks
• Talk to PMD about a full build spec

The Bottom Line

The TOM'S Twist-Lock Spring Oil Filler Cap is one of the few engine-bay pieces that earns its reputation every single time the hood comes up. It is mechanically interesting, historically important, color-matched to a 30-year design language, and — for the first time in years — available again at MSRP from an authorized U.S. dealer. Pick the color that matches the bay you are building, and grab it while this run lasts.

Shop the TOM'S Heritage Remake Cap

Have a JZ build, a 4A-GE 20V Levin, or a TOM'S theme car you are putting together? Tag @pmddriven when this cap goes on — we love seeing them in the wild.