PitStopUSA.com - Cap

Cap and Plug Fittings - Cap

At Pit Stop USA, we have a great selection of Caps for your automotive plumbing needs. From AN and NPT fittings to fuel line and hose fittings, we offer a wide range of products to help you assemble a custom plumbing system for your competition vehicle or keep your classic car period-accurate. Our selection also includes adapters and reducers to make it easy to switch between fittings. With over 25 years of experience, we're proud to offer the most complete line of adapter fittings for aviation fluid transfer technology in the automotive performance market. You can trust us to meet all of your aviation fluid transfer technology needs and experience top-notch performance today!

Plastic, Aluminum and Steel Caps and Plugs are a must for sealing low pressure requirements and for keeping debris out of lines and hoses. PitStopUSA.com has aluminum caps and plugs in all popular sizes designed for 37 flared fittings and straight threaded ports.

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Items 1-25 of 96
Cap and Plug Fittings - Cap - A-1 Performance Plumbing - A-1 Performance Plumbing -03 AN Cap
A-1 Performance Plumbing -03 AN Cap
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Description: Fitting, Cap, 3 AN, Aluminum, Blue Anodized, Each
Item #: AAA92903
Condition: New
Limited Supply: Only 1 Left!
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Orders over $149 ship free. Oversize items are excluded.
Price: $7.99
Sale: $6.99
Save: 13%
Save: $1.00
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Cap and Plug Fittings - Cap - A-1 Performance Plumbing - A-1 Performance Plumbing -12 AN Cap
A-1 Performance Plumbing -12 AN Cap
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Description: Fitting, Cap, 12 AN, Aluminum, Blue Anodized, Each
Item #: AAA92912
Condition: New
Limited Supply: Only 2 Left!
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Orders over $149 ship free. Oversize items are excluded.
Price: $12.99
Sale: $11.99
Save: 8%
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Cap and Plug Fittings - Cap - Aeroquip - Aeroquip Aluminum #10 AN Cap - Bulk
Aeroquip Aluminum #10 AN Cap - Bulk
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Description: Fitting, Cap, 10 AN, Aluminum, Blue Anodized, Each
Item #: AERFBM3742
Condition: New
Limited Supply: Only 0 Left!
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Orders over $149 ship free. Oversize items are excluded.
Price: $26.84
Sale: $14.97
Save: 44%
Save: $11.87
Cap and Plug Fittings - Cap - Aeroquip - Aeroquip Aluminum #6 AN Cap - Bulk
Aeroquip Aluminum #6 AN Cap - Bulk
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Description: Fitting, Cap, 6 AN, Aluminum, Blue Anodized, Each
Item #: AERFBM3740
Condition: New
Limited Supply: Only 2 Left!
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Orders over $149 ship free. Oversize items are excluded.
Price: $13.48
Sale: $7.97
Save: 41%
Save: $5.51
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Cap and Plug Fittings - Cap - Aeroquip - Aeroquip Aluminum -03 AN Cap - (2 Pack)
Aeroquip Aluminum -03 AN Cap - (2 Pack)
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Description: Fitting, Cap, 3 AN, Aluminum, Blue Anodized, Pair
Item #: AERFCM3751
Condition: New
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Orders over $149 ship free. Oversize items are excluded.
Price: $28.52
Sale: $11.97
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Save: $16.55
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Cap and Plug Fittings - Cap - Aeroquip - Aeroquip Aluminum -04 AN Cap - (2 Pack)
Aeroquip Aluminum -04 AN Cap - (2 Pack)
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Description: Fitting, Cap, 4 AN, Aluminum, Blue Anodized, Pair
Item #: AERFCM3752
Condition: New
Limited Supply: Only 0 Left!
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Orders over $149 ship free. Oversize items are excluded.
Price: $13.74
Sale: $5.97
Save: 57%
Save: $7.77
Cap and Plug Fittings - Cap - Aeroquip - Aeroquip Aluminum -04 Threaded Dust Cap - (20 Pack)
Aeroquip Aluminum -04 Threaded Dust Cap - (20 Pack)
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Description: Fitting, Cap, 4 AN, Knurled Head, Aluminum, Natural, Set of 20
Item #: AERFBM3648
Condition: New
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Orders over $149 ship free. Oversize items are excluded.
Price: $19.68
Sale: $8.97
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Save: $10.71
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Cap and Plug Fittings - Cap - Aeroquip - Aeroquip Aluminum -06 AN Cap
Aeroquip Aluminum -06 AN Cap
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Description: Fitting, Cap, 6 AN, Aluminum, Blue Anodized, Each
Item #: AERFCM3740
Condition: New
Limited Supply: Only 0 Left!
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Orders over $149 ship free. Oversize items are excluded.
Price: $15.16
Sale: $5.97
Save: 61%
Save: $9.19
Cap and Plug Fittings - Cap - Aeroquip - Aeroquip Aluminum -06 Threaded Dust Cap - (20 Pack)
Aeroquip Aluminum -06 Threaded Dust Cap - (20 Pack)
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Description: Fitting, Cap, 6 AN, Knurled Head, Aluminum, Natural, Set of 20
Item #: AERFBM3649
Condition: New
Same Day Shipping!
Orders over $149 ship free. Oversize items are excluded.
Price: $21.84
Sale: $8.97
Save: 59%
Save: $12.87
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Cap and Plug Fittings - Cap - Aeroquip - Aeroquip Aluminum -08 AN Cap
Aeroquip Aluminum -08 AN Cap
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Description: Fitting, Cap, 8 AN, Aluminum, Blue Anodized, Each
Item #: AERFBM3741
Condition: New
Limited Supply: Only 6 Left!
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Orders over $149 ship free. Oversize items are excluded.
Price: $15.10
Sale: $5.97
Save: 60%
Save: $9.13
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Cap and Plug Fittings - Cap - Aeroquip - Aeroquip Aluminum -08 AN Cap
Aeroquip Aluminum -08 AN Cap
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Description: Fitting, Cap, 8 AN, Aluminum, Blue Anodized, Each
Item #: AERFCM3741
Condition: New
Same Day Shipping!
Orders over $149 ship free. Oversize items are excluded.
Price: $16.90
Sale: $7.97
Save: 53%
Save: $8.93
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Cap and Plug Fittings - Cap - Aeroquip - Aeroquip Aluminum -08 Threaded Dust Cap - (20 Pack)
Aeroquip Aluminum -08 Threaded Dust Cap - (20 Pack)
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Description: Fitting, Cap, 8 AN, Aluminum, Natural, Set of 20
Item #: AERFBM3650
Condition: New
Limited Supply: Only 4 Left!
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Orders over $149 ship free. Oversize items are excluded.
Price: $31.22
Sale: $13.97
Save: 55%
Save: $17.25
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Cap and Plug Fittings - Cap - Aeroquip - Aeroquip Aluminum -10 AN Cap
Aeroquip Aluminum -10 AN Cap
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Description: Fitting, Cap, 10 AN, Aluminum, Blue Anodized, Each
Item #: AERFCM3742
Condition: New
Same Day Shipping!
Orders over $149 ship free. Oversize items are excluded.
Price: $28.64
Sale: $8.97
Save: 69%
Save: $19.67
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Cap and Plug Fittings - Cap - Aeroquip - Aeroquip Aluminum -10 Threaded Dust Cap - (12 Pack)
Aeroquip Aluminum -10 Threaded Dust Cap - (12 Pack)
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Description: Fitting, Cap, 10 AN, Aluminum, Natural, Set of 12
Item #: AERFBM3651
Condition: New
Same Day Shipping!
Orders over $149 ship free. Oversize items are excluded.
Price: $21.78
Sale: $10.97
Save: 50%
Save: $10.81
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Cap and Plug Fittings - Cap - Aeroquip - Aeroquip Aluminum -12 AN Cap
Aeroquip Aluminum -12 AN Cap
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Description: Fitting, Cap, 12 AN, Aluminum, Blue Anodized, Each
Item #: AERFCM3743
Condition: New
Limited Supply: Only 9 Left!
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Orders over $149 ship free. Oversize items are excluded.
Price: $37.00
Sale: $13.97
Save: 62%
Save: $23.03
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Cap and Plug Fittings - Cap - Aeroquip - Aeroquip Aluminum -12 Threaded Dust Cap - (10 Pack)
Aeroquip Aluminum -12 Threaded Dust Cap - (10 Pack)
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Description: Fitting, Cap, 12 AN, Aluminum, Natural, Set of 10
Item #: AERFBM3652
Condition: New
Same Day Shipping!
Orders over $149 ship free. Oversize items are excluded.
Price: $22.10
Sale: $10.97
Save: 50%
Save: $11.13
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Cap and Plug Fittings - Cap - Aeroquip - Aeroquip Aluminum -16 AN Cap
Aeroquip Aluminum -16 AN Cap
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Description: Fitting, Cap, 16 AN, Aluminum, Blue Anodized, Each
Item #: AERFCM3744
Condition: New
Limited Supply: Only 9 Left!
Same Day Shipping!
Orders over $149 ship free. Oversize items are excluded.
Price: $46.52
Sale: $16.97
Save: 64%
Save: $29.55
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Cap and Plug Fittings - Cap - Aeroquip - Aeroquip Aluminum -16 Threaded Dust Cap - (10 Pack)
Aeroquip Aluminum -16 Threaded Dust Cap - (10 Pack)
(0) Reviews: Write first review
Description: Fitting, Cap, 16 AN, Aluminum, Natural, Set of 10
Item #: AERFBM3653
Condition: New
Limited Supply: Only 7 Left!
Same Day Shipping!
Orders over $149 ship free. Oversize items are excluded.
Price: $17.94
Sale: $11.97
Save: 33%
Save: $5.97
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Cap and Plug Fittings - Cap - Aeroquip - Aeroquip Cap
Aeroquip Cap
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Description: Fitting, Cap, 8 AN, Steel, Zinc Oxide, Pair
Item #: AERFBM3603
Condition: New
Limited Supply: Only 0 Left!
Same Day Shipping!
Orders over $149 ship free. Oversize items are excluded.
Price: $20.22
Sale: $10.97
Save: 46%
Save: $9.25
Cap and Plug Fittings - Cap - Aeroquip - Aeroquip Steel -03 AN Cap - (6 Pack)
Aeroquip Steel -03 AN Cap - (6 Pack)
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Description: Fitting, Cap, 3 AN, Steel, Zinc Oxide, Set of 6
Item #: AERFCM3479
Condition: New
Limited Supply: Only 0 Left!
Same Day Shipping!
Orders over $149 ship free. Oversize items are excluded.
Price: $59.94
Sale: $17.97
Save: 70%
Save: $41.97
Cap and Plug Fittings - Cap - Aeroquip - Aeroquip Steel -04 AN Cap - (6 Pack)
Aeroquip Steel -04 AN Cap - (6 Pack)
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Description: Fitting, Cap, 4 AN, Steel, Zinc Oxide, Set of 6
Item #: AERFCM3480
Condition: New
Limited Supply: Only 1 Left!
Same Day Shipping!
Orders over $149 ship free. Oversize items are excluded.
Price: $35.58
Sale: $10.97
Save: 69%
Save: $24.61
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Cap and Plug Fittings - Cap - Aeroquip - Aeroquip Steel -06 AN Cap - (2 Pack)
Aeroquip Steel -06 AN Cap - (2 Pack)
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Description: Fitting, Cap, 6 AN, Steel, Natural, Pair
Item #: AERFCM3602
Condition: New
Limited Supply: Only 9 Left!
Same Day Shipping!
Orders over $149 ship free. Oversize items are excluded.
Price: $19.58
Sale: $6.97
Save: 64%
Save: $12.61
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Cap and Plug Fittings - Cap - Aeroquip - Aeroquip Steel -08 AN Cap - (2 Pack)
Aeroquip Steel -08 AN Cap - (2 Pack)
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Description: Fitting, Cap, 8 AN, Steel, Natural, Pair
Item #: AERFCM3603
Condition: New
Limited Supply: Only 1 Left!
Same Day Shipping!
Orders over $149 ship free. Oversize items are excluded.
Price: $22.84
Sale: $9.97
Save: 56%
Save: $12.87
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Cap and Plug Fittings - Cap - Aeroquip - Aeroquip Steel -10 AN Cap - (2 Pack)
Aeroquip Steel -10 AN Cap - (2 Pack)
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Description: Fitting, Cap, 10 AN, Steel, Natural, Pair
Item #: AERFCM3604
Condition: New
Limited Supply: Only 8 Left!
Same Day Shipping!
Orders over $149 ship free. Oversize items are excluded.
Price: $37.58
Sale: $27.97
Save: 26%
Save: $9.61
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Cap and Plug Fittings - Cap - Aeroquip - Aeroquip Steel -12 AN Cap - (2 Pack)
Aeroquip Steel -12 AN Cap - (2 Pack)
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Description: Fitting, Cap, 12 AN, Steel, Natural, Pair
Item #: AERFCM3605
Condition: New
Limited Supply: Only 0 Left!
Same Day Shipping!
Orders over $149 ship free. Oversize items are excluded.
Price: $49.52
Sale: $13.97
Save: 72%
Save: $35.55
Items 1-25 of 96

More About Cap

At Pit Stop USA, we have a great selection of Caps for your automotive plumbing needs. From AN and NPT fittings to fuel line and hose fittings, we offer a wide range of products to help you assemble a custom plumbing system for your competition vehicle or keep your classic car period-accurate. Our selection also includes adapters and reducers to make it easy to switch between fittings. With over 25 years of experience, we're proud to offer the most complete line of adapter fittings for aviation fluid transfer technology in the automotive performance market. You can trust us to meet all of your aviation fluid transfer technology needs and experience top-notch performance today!

Plastic, Aluminum and Steel Caps and Plugs are a must for sealing low pressure requirements and for keeping debris out of lines and hoses. PitStopUSA.com has aluminum caps and plugs in all popular sizes designed for 37 flared fittings and straight threaded ports.