Skip to content

HOME
ABOUT
BRANDS
COLLECTIONS
ACCOUNT
- Profile
- Orders
- Settings
MOBILE APP
CONTACT

Facebook
Instagram
YouTube
TikTok
X
Pinterest
Snapchat
Tumblr
Vimeo

Search

Search

Popular search:

SHOP BY CATEGORY

Air & Fuel
Engine
Drivetrain
Exhaust
Brakes
Suspension & Components
Safety Equipment
Chassis Components
More

HOME
ABOUT
BRANDS
COLLECTIONS
ACCOUNT
- Profile
- Orders
- Settings
MOBILE APP
CONTACT

Collection: Cap and Plug Fittings

Filter:

Availability

0 selected

Availability

In stock (443 products)
Out of stock (54 products)

In stock (443 products)
Out of stock (54 products)

Price

The highest price is $326.99

$

From

$

To

Brand

0 selected

Brand

Aeroquip (51 products)
Allstar Performance (80 products)
Bert Transmission (2 products)
Brian Tooley Racing (1 product)
Chevrolet Performance Parts (4 products)
COLD-CASE Radiators (1 product)
Dart (1 product)
Derale (4 products)
Dura-Bond Bearing (1 product)
Earl's Performance (31 products)
FAST (1 product)
Fragola Performance Systems (67 products)
ICT Billet (6 products)
jiffytite (5 products)
JOES Racing Products (1 product)
King Racing Products (1 product)
Magnafuel Racing Fuel Systems (7 products)
Moroso (9 products)
Omix (2 products)
Peterson Fluid (2 products)
Pioneer (17 products)
Quickcar Racing (1 product)
Racing Power Company (2 products)
Redhorse Performance (75 products)
Russell (36 products)
Specialty Products chrome - Archived (2 products)
Straub Technologies (1 product)
Tiger Quick Change (1 product)
Trans-Dapt Performance (1 product)
Triple X Race Components (15 products)
Vibrant Performance (24 products)
Winters (1 product)
XRP (44 products)

Aeroquip (51 products)
Allstar Performance (80 products)
Bert Transmission (2 products)
Brian Tooley Racing (1 product)
Chevrolet Performance Parts (4 products)
COLD-CASE Radiators (1 product)
Dart (1 product)
Derale (4 products)
Dura-Bond Bearing (1 product)
Earl's Performance (31 products)
FAST (1 product)
Fragola Performance Systems (67 products)
ICT Billet (6 products)
jiffytite (5 products)
JOES Racing Products (1 product)
King Racing Products (1 product)
Magnafuel Racing Fuel Systems (7 products)
Moroso (9 products)
Omix (2 products)
Peterson Fluid (2 products)
Pioneer (17 products)
Quickcar Racing (1 product)
Racing Power Company (2 products)
Redhorse Performance (75 products)
Russell (36 products)
Specialty Products chrome - Archived (2 products)
Straub Technologies (1 product)
Tiger Quick Change (1 product)
Trans-Dapt Performance (1 product)
Triple X Race Components (15 products)
Vibrant Performance (24 products)
Winters (1 product)
XRP (44 products)

Product type

0 selected

Product type

Cap and Plug Fittings (497 products)

Cap and Plug Fittings (497 products)

Sort by:

497 products

Filter and sort Filter

Filter and sort

Filter

497 products

Availability

In stock (443 products)
Out of stock (54 products)

Clear

Price

The highest price is $326.99

$

From

$

To

Clear

Brand

Aeroquip (51 products)
Allstar Performance (80 products)
Bert Transmission (2 products)
Brian Tooley Racing (1 products)
Chevrolet Performance Parts (4 products)
COLD-CASE Radiators (1 products)
Dart (1 products)
Derale (4 products)
Dura-Bond Bearing (1 products)
Earl's Performance (31 products)
FAST (1 products)
Fragola Performance Systems (67 products)
ICT Billet (6 products)
jiffytite (5 products)
JOES Racing Products (1 products)
King Racing Products (1 products)
Magnafuel Racing Fuel Systems (7 products)
Moroso (9 products)
Omix (2 products)
Peterson Fluid (2 products)
Pioneer (17 products)
Quickcar Racing (1 products)
Racing Power Company (2 products)
Redhorse Performance (75 products)
Russell (36 products)
Specialty Products chrome - Archived (2 products)
Straub Technologies (1 products)
Tiger Quick Change (1 products)
Trans-Dapt Performance (1 products)
Triple X Race Components (15 products)
Vibrant Performance (24 products)
Winters (1 products)
XRP (44 products)

Clear

Product type

Cap and Plug Fittings (497 products)

Clear

Sort by:

Remove all

497 products

AN Cap -3

Vendor:
Allstar Performance

AN Cap -3

Regular price $3.99 USD

Regular price ~~$3.99 USD~~ Sale price $3.99 USD
Unit price per
End Caps Captured 3/16in 10pk

Sold out

Vendor:
Allstar Performance

End Caps Captured 3/16in 10pk

Regular price $13.59 USD

Regular price ~~$13.59 USD~~ Sale price $13.59 USD
Unit price per

Sold out
Nozzle Plugs 8pk 1/2-20 with O-ring

Vendor:
Allstar Performance

Nozzle Plugs 8pk 1/2-20 with O-ring

Regular price $57.99 USD

Regular price ~~$57.99 USD~~ Sale price $57.99 USD
Unit price per
18mm O2 Sensor Plug

Vendor:
Allstar Performance

18mm O2 Sensor Plug

Regular price $8.79 USD

Regular price ~~$8.79 USD~~ Sale price $8.79 USD
Unit price per
GM LS Coolant Bypass Crossover Plugs 1pr

Vendor:
Allstar Performance

GM LS Coolant Bypass Crossover Plugs 1pr

Regular price $17.99 USD

Regular price ~~$17.99 USD~~ Sale price $17.99 USD
Unit price per
3/4-16 Access Plug with O-Ring

Vendor:
Moroso

3/4-16 Access Plug with O-Ring

Regular price $31.99 USD

Regular price ~~$31.99 USD~~ Sale price $31.99 USD
Unit price per
3/4in. NPT Chrome Pipe Plug 2 Per Package

Vendor:
Moroso

3/4in. NPT Chrome Pipe Plug 2 Per Package

Regular price $18.99 USD

Regular price ~~$18.99 USD~~ Sale price $18.99 USD
Unit price per
1/2in. NPT Chrome Pipe Plug 2 Per Package

Vendor:
Moroso

1/2in. NPT Chrome Pipe Plug 2 Per Package

Regular price $19.99 USD

Regular price ~~$19.99 USD~~ Sale price $19.99 USD
Unit price per
3/8in. NPT Chrome Pipe Plug 4 Per Package

Vendor:
Moroso

3/8in. NPT Chrome Pipe Plug 4 Per Package

Regular price $19.99 USD

Regular price ~~$19.99 USD~~ Sale price $19.99 USD
Unit price per
3/8innpt Alum Pipe Plugs

Vendor:
Moroso

3/8innpt Alum Pipe Plugs

Regular price $17.99 USD

Regular price ~~$17.99 USD~~ Sale price $17.99 USD
Unit price per
1/2innpt Alum Pipe Plugs

Vendor:
Moroso

1/2innpt Alum Pipe Plugs

Regular price $19.99 USD

Regular price ~~$19.99 USD~~ Sale price $19.99 USD
Unit price per
Rear Oil Passage Plug Barbell GM LT Gen-5

Vendor:
Moroso

Rear Oil Passage Plug Barbell GM LT Gen-5

Regular price $24.99 USD

Regular price ~~$24.99 USD~~ Sale price $24.99 USD
Unit price per
Oil Galley Diverter GM LS Engines

Vendor:
Moroso

Oil Galley Diverter GM LS Engines

Regular price $25.99 USD

Regular price ~~$25.99 USD~~ Sale price $25.99 USD
Unit price per
Plug Fitting - 20mm x 1.5mm

Vendor:
Moroso

Plug Fitting - 20mm x 1.5mm

Regular price $22.99 USD

Regular price ~~$22.99 USD~~ Sale price $22.99 USD
Unit price per
-20 Steel AN Tube Cap

Sold out

Vendor:
Aeroquip

-20 Steel AN Tube Cap

Regular price $20.99 USD

Regular price ~~$20.99 USD~~ Sale price $20.99 USD
Unit price per

Sold out
#16 Alm Flare Plug

Sold out

Vendor:
Aeroquip

#16 Alm Flare Plug

Regular price $13.99 USD

Regular price ~~$13.99 USD~~ Sale price $13.99 USD
Unit price per

Sold out
#3 O-Ring Boss Plug

Vendor:
Aeroquip

#3 O-Ring Boss Plug

Regular price $23.99 USD

Regular price ~~$23.99 USD~~ Sale price $23.99 USD
Unit price per
#4 O-Ring Boss Plug

Vendor:
Aeroquip

#4 O-Ring Boss Plug

Regular price $9.99 USD

Regular price ~~$9.99 USD~~ Sale price $9.99 USD
Unit price per
#6 O-Ring Boss Plug

Sold out

Vendor:
Aeroquip

#6 O-Ring Boss Plug

Regular price $6.99 USD

Regular price ~~$6.99 USD~~ Sale price $6.99 USD
Unit price per

Sold out
#10 O-Ring Boss Plug

Vendor:
Aeroquip

#10 O-Ring Boss Plug

Regular price $13.99 USD

Regular price ~~$13.99 USD~~ Sale price $13.99 USD
Unit price per
#12 O-Ring Boss Plug

Vendor:
Aeroquip

#12 O-Ring Boss Plug

Regular price $19.99 USD

Regular price ~~$19.99 USD~~ Sale price $19.99 USD
Unit price per
#6 An Cap Aluminum

Vendor:
Aeroquip

#6 An Cap Aluminum

Regular price $10.49 USD

Regular price ~~$10.49 USD~~ Sale price $10.49 USD
Unit price per
#8 An Cap Aluminum

Vendor:
Aeroquip

#8 An Cap Aluminum

Regular price $5.79 USD

Regular price ~~$5.79 USD~~ Sale price $5.79 USD
Unit price per
#10 An Cap Aluminum

Vendor:
Aeroquip

#10 An Cap Aluminum

Regular price $8.99 USD

Regular price ~~$8.99 USD~~ Sale price $8.99 USD
Unit price per

1
…
7
8
9
10
11
…
21

Rocket Performance Products

Proudly Serving the Northeast Asphalt Oval Racing Community

Secured Payment Gateways

Payment methods

Policies

Terms
Privacy
Shipping
Refund

My Account

Search
Orders
Profile
Settings

Contact Info

(315) 573-1501
Based in Ontario, NY
Email RPP Support
support@rocketperformanceproducts.com

Search
Orders
Profile
Settings

© 2026, Rocket Performance Products

Cart
Log in

We use cookies to enhance your experience on our website.

View our Privacy & Policy

Choosing a selection results in a full page refresh.
Opens in a new window.