C8 Corvette AMT Overkill Oil Cap

Name: C8 Corvette AMT Overkill Oil Cap
Brand: AMT Motorsport
SKU: AMTC8OilCAP
Price: 105.0 USD
Availability: InStock

Underside of the AMT Overkill C8 Corvette oil cap showing machined locking channels and black O-ring

Red AMT Overkill C8 Corvette replacement oil cap with locking stem and O-ring visible

Red AMT Overkill oil cap installed beside the engine cover in a C8 Corvette

Red AMT Overkill oil cap installed in a C8 Corvette LT2 engine bay

$105.00

Shipping calculated at checkout.

In stock - Ships in 1–2 business days

Color

Red

Black

Blue

AMT Motorsport Overkill Oil Cap for C8 Corvette

The AMT Motorsport Overkill Oil Cap is a complete replacement oil filler cap for all C8 Corvette models, including Stingray, Z06, E-Ray, ZR1, ZR1X, Grand Sport and Grand Sport X. Machined from 6061-T6 aluminum, it adds a sculpted detail to the engine bay while taking the place of the factory oil cap. Each order includes one cap in your choice of red, black or blue anodized finish.

Its seven-sided outer profile gives your hand a defined shape to hold when opening or closing the oil-fill neck. Deep pockets, side windows and sculpted ribs leave the five-axis machining visible, while the double-helix locking interface draws the cap into position as it turns. The sealing surfaces and O-ring interface are part of the aluminum component, so the engineering detail continues underneath the laser-engraved AMT logo.

Product Details

Quantity: One complete replacement oil cap
Material: Solid 6061-T6 billet aluminum
Construction: Five-axis CNC machining with pocketed surfaces, side windows and sculpted ribs
Profile: Seven-sided exterior for hand operation
Locking design: Machined double-helix interface for the C8 oil-fill neck
Sealing design: Machined sealing surfaces and O-ring interface
Finish options: Red, black or blue anodize with a laser-engraved AMT Motorsport logo
Origin: Made in New York, USA

Benefits

Finish the engine-bay details: Add a billet aluminum oil cap with visible machining that complements a carefully detailed C8 Corvette.
Replace the complete component: The locking and sealing interfaces are machined into the cap itself, rather than relying on an accessory attached over the factory plastic cap.
Keep oil-fill access practical: The seven-sided shape provides defined hand-contact surfaces for regular removal and replacement.
Choose your engine-bay accent: Select red, black or blue without changing the cap's construction or locking design.

Important Notes

Sold individually. Select one finish; multiple caps shown together illustrate color choices.
This is the engine oil filler cap. It is not a coolant reservoir cap or a multi-piece fluid-cap set.
Check the sealing ring and cap engagement during installation. Confirm the required seal arrangement before fitting; a separate replacement O-ring and its material are not specified in the package information.
Follow the oil specification and filling procedure in your Corvette owner's manual. An appearance upgrade does not change the engine's oil requirements.

CORVETTE COMPATIBILITY

C8 Corvette Stingray
C8 Corvette Z06
C8 Corvette E-Ray
C8 Corvette ZR1 and ZR1X
C8 Corvette Grand Sport and Grand Sport X
Replacement at the original engine oil-fill location

Why Buy This Product from Custom Corvette Accessories

Custom Corvette Accessories brings the AMT Overkill's construction, color choices and C8 model coverage together in one clear listing. Review the actual cap, underside and installed views alongside the single-cap quantity and oil-fill details to choose the finishing touch for your Corvette's engine bay.

✅ In-stock items ship in 1–2 business days via Standard Ground.

✅ Free shipping items are available in the Continental US only.

✅ Custom quotes available for 2-Day, Next Day, or Saturday delivery.

✅ Custom or backordered items ship as soon as available.

View our full shipping policy →

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Vehicle Fitment & Specifications

Generation:	C8
Trim Level:	Stingray, Z06, E-Ray, ZR1, ZR1X, Grand Sport, Grand Sport X
Engine Code:	LT2, LT6, LT7, LS6
Transmission Type:	Dual-Clutch
Intended Use:	Street, Show

Shipping Information

Boxed Weight:	2.0 lbs
Box Size:	6 x 6 x 4

Frequently Asked Questions

Which C8 Corvette models fit the AMT Motorsport Overkill Oil Cap?

The AMT Motorsport Overkill Oil Cap fits all C8 Corvette models, including Stingray, Z06, E-Ray, ZR1, ZR1X, Grand Sport, and Grand Sport X.

Is the AMT Motorsport Overkill Oil Cap for the C8 Corvette a replacement or a cover?

The AMT Motorsport Overkill Oil Cap for the C8 Corvette replaces the factory cap completely; its locking and sealing features are machined into the aluminum body.

What is the AMT Motorsport Overkill Oil Cap for the C8 Corvette made from?

The AMT Motorsport Overkill Oil Cap for the C8 Corvette is machined from 6061-T6 aluminum using 5-axis CNC equipment, with a seven-sided outer profile.

Which finishes are available for the AMT Motorsport Overkill Oil Cap for the C8 Corvette?

The AMT Motorsport Overkill Oil Cap for the C8 Corvette comes in anodized red, black, or blue, with a laser-engraved AMT Motorsport logo.

How does the AMT Motorsport Overkill Oil Cap secure to the C8 Corvette oil-fill neck?

The AMT Motorsport Overkill Oil Cap for the C8 Corvette uses a machined double-helix locking interface and an O-ring sealing interface.