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Welch Plugs

Welch Plugs are key to engine performance and reliability. Explore our premium selection built for horsepower, torque, and longevity under extreme conditions.

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Aeroflow Replacement Billet Barbell Plug (AF64-2132) AF64-2132
$24.60 - $24.60
$24.60
$24.60 - $24.60
$24.60
+ GST

Aeroflow Replacement Billet Barbell Plug (AF64-2132)

Suit GM LS Series Blocks

GM LS BILLET 6061 BARBELL PLUGSuit GM LS Series BlocksPart Number: AF64-2132 Replacement Billet Oil Gallery Barbell. Aeroflow Performance has rede...

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$24.60 - $24.60
$24.60
$24.60 - $24.60
$24.60
+ GST
Aeroflow Nissan Skyline RB20,RB25,RB26,RB30 & Holden VL RB30 Welsh Plug Kit (AF3000-1007) AF3000-1007
$64.60 - $64.60
$64.60
$64.60 - $64.60
$64.60
+ GST

Aeroflow Nissan Skyline RB20,RB25,RB26,RB30 & Holden VL RB30 Welsh Plug Kit (AF3000-1007)

Stainless Steel Material

NISSAN RB WELSH PLUG KIT RB30Stainless Steel MaterialPart Number: AF3000-1007 These Aeroflow Performance welsh plug kits are designed for sealing ...

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$64.60 - $64.60
$64.60
$64.60 - $64.60
$64.60
+ GST
Aeroflow Holden V8 253, 304, 308 Welsh Plug Kit (AF3000-1004) AF3000-1004
$55.10 - $55.10
$55.10
$55.10 - $55.10
$55.10
+ GST

Aeroflow Holden V8 253, 304, 308 Welsh Plug Kit (AF3000-1004)

Brass Material

HOLDEN V8 WELSH PLUG KITBrass MaterialPart Number: AF3000-1004 These Aeroflow Performance welsh plug kits are designed for sealing up the casting ...

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$55.10 - $55.10
$55.10
$55.10 - $55.10
$55.10
+ GST
Aeroflow Small Block Chevy Welsh Plug Kit (AF3000-1002) AF3000-1002
$47.50 - $47.50
$47.50
$47.50 - $47.50
$47.50
+ GST

Aeroflow Small Block Chevy Welsh Plug Kit (AF3000-1002)

Brass Material

SBC 350 400 WELSH PLUG KITBrass MaterialPart Number: AF3000-1002 These Aeroflow Performance welsh plug kits are designed for sealing up the castin...

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$47.50 - $47.50
$47.50
$47.50 - $47.50
$47.50
+ GST
Aeroflow Ford 351 Cleveland Welsh Plug Kit (AF3000-1001) AF3000-1001
$41.80 - $41.80
$41.80
$41.80 - $41.80
$41.80
+ GST

Aeroflow Ford 351 Cleveland Welsh Plug Kit (AF3000-1001)

Brass Material

SBF 351C WELSH PLUG KITBrass MaterialPart Number: AF3000-1001 These Aeroflow Performance welsh plug kits are designed for sealing up the casting c...

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$41.80 - $41.80
$41.80
$41.80 - $41.80
$41.80
+ GST
Aeroflow Ford 289,302,351 Windsor Welsh Plug Kit (AF3000-1000) AF3000-1000
$51.30 - $51.30
$51.30
$51.30 - $51.30
$51.30
+ GST

Aeroflow Ford 289,302,351 Windsor Welsh Plug Kit (AF3000-1000)

Brass Material

SBF WELSH PLUG KITBrass MaterialPart Number: AF3000-1000 These Aeroflow Performance welsh plug kits are designed for sealing up the casting core h...

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$51.30 - $51.30
$51.30
$51.30 - $51.30
$51.30
+ GST
Aeroflow Holden 6 Cylinder 149, 161, 173, 179, 186 & 202 Welsh Plug Kit (AF3000-1014)
$49.70 - $49.70
$49.70
$49.70 - $49.70
$49.70
+ GST

Aeroflow Holden 6 Cylinder 149, 161, 173, 179, 186 & 202 Welsh Plug Kit (AF3000-1014)

Brass Material

HOLDEN 6 WELSH PLUG KITBrass MaterialPart Number: AF3000-1014 These Aeroflow Performance welsh plug kits are designed for sealing up the casting c...

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$49.70 - $49.70
$49.70
$49.70 - $49.70
$49.70
+ GST
Aeroflow Ford XR6 Barra Welsh Plug Kit (AF3000-1006) AF3000-1006
$43.70 - $43.70
$43.70
$43.70 - $43.70
$43.70
+ GST

Aeroflow Ford XR6 Barra Welsh Plug Kit (AF3000-1006)

Stainless Steel Material

FORD BARRA XR6 WELSH PLUG KITStainless Steel MaterialPart Number: AF3000-1006 These Aeroflow Performance welsh plug kits are designed for sealing ...

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$43.70 - $43.70
$43.70
$43.70 - $43.70
$43.70
+ GST
Aeroflow Nissan SR20 Welsh Plug Kit (AF3000-1008) AF3000-1008
$26.50 - $26.50
$26.50
$26.50 - $26.50
$26.50
+ GST

Aeroflow Nissan SR20 Welsh Plug Kit (AF3000-1008)

Stainless Steel Material

NISSAN SR20 WELSH PLUG KITStainless Steel MaterialPart Number: AF3000-1008 These Aeroflow Performance welsh plug kits are designed for sealing up ...

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$26.50 - $26.50
$26.50
$26.50 - $26.50
$26.50
+ GST
Pioneer Brass Welch Plug Kit (PIPE-100-BR) PIPE-100-BR
$61.80 - $61.80
$61.80
$61.80 - $61.80
$61.80
+ GST

Pioneer Brass Welch Plug Kit (PIPE-100-BR)

Suit Small Block Chevy 283 - 350

CHEV SB BRASS WELSH PLUG KITSuit Small Block Chevy 283 - 350Part Number: PIPE-100-BR Complete engine block Welch plug and gallery plug kits includ...

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$61.80 - $61.80
$61.80
$61.80 - $61.80
$61.80
+ GST
Aeroflow 8mm Welsh Plug Kit Suit GM LS DOD Delete (AF3000-1099) AF3000-1099
$17.60 - $17.60
$17.60
$17.60 - $17.60
$17.60
+ GST

Aeroflow 8mm Welsh Plug Kit Suit GM LS DOD Delete (AF3000-1099)

Suit GM LS DOD Delete

8mm WELSH PLUG KIT GM LS DODSuit GM LS DOD DeletePart Number: AF3000-1099 These Aeroflow Performance Welsh plug kits are designed for sealing up th...

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$17.60 - $17.60
$17.60
$17.60 - $17.60
$17.60
+ GST
Aeroflow Small Block Chrysler 273-360 Welsh Plug Kit (AF3000-1011)
$64.00 - $64.00
$64.00
$64.00 - $64.00
$64.00
+ GST

Aeroflow Small Block Chrysler 273-360 Welsh Plug Kit (AF3000-1011)

Brass Material

SB CHRYSLER WELSH PLUG KITBrass MaterialPart Number: AF3000-1011 These Aeroflow Performance welsh plug kits are designed for sealing up the castin...

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$64.00 - $64.00
$64.00
$64.00 - $64.00
$64.00
+ GST
Aeroflow Big Block Chrysler 383-440 Welsh Plug Kit (AF3000-1012)
$37.20 - $37.20
$37.20
$37.20 - $37.20
$37.20
+ GST

Aeroflow Big Block Chrysler 383-440 Welsh Plug Kit (AF3000-1012)

Brass Material

BB CHRYSLER WELSH PLUG KITBrass MaterialPart Number: AF3000-1012 These Aeroflow Performance welsh plug kits are designed for sealing up the castin...

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$37.20 - $37.20
$37.20
$37.20 - $37.20
$37.20
+ GST
Aeroflow GM LS Welsh Plug Kit (AF3000-1005)
$47.50 - $47.50
$47.50
$47.50 - $47.50
$47.50
+ GST

Aeroflow GM LS Welsh Plug Kit (AF3000-1005)

Steel Material with Plastic Barbell

GM LS WELSH PLUG KITSteel Material with Plastic BarbellPart Number: AF3000-1005 These Aeroflow Performance welsh plug kits are designed for sealin...

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$47.50 - $47.50
$47.50
$47.50 - $47.50
$47.50
+ GST
Proform Welsh Plug/Freeze Plung Inserts (PR141-233) PR141-233
$77.80 - $77.80
$77.80
$77.80 - $77.80
$77.80
+ GST

Proform Welsh Plug/Freeze Plung Inserts (PR141-233)

Suit SB Chev, Silver With Red Recessed Bowtie Emblem

BOWTIE EMBLEM FREEZE PLUGSSuit SB Chev, Silver With Red Recessed Bowtie EmblemPart Number: PR141-233 Give your street rod the ultimate trick look ...

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$77.80 - $77.80
$77.80
$77.80 - $77.80
$77.80
+ GST
Pioneer Steel Welsh Plug Kit (PIPE-496) PIPE-496
$31.00 - $31.00
$31.00
$31.00 - $31.00
$31.00
+ GST

Pioneer Steel Welsh Plug Kit (PIPE-496)

Suit GM LS Series

GM LS ENGINE PLUG KITSuit GM LS SeriesPart Number: PIPE-496 Pioneer Automotive Industries was founded in 1946 in Meridian, Mississippi. Since ince...

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$31.00 - $31.00
$31.00
$31.00 - $31.00
$31.00
+ GST
Pioneer Brass Welsh Plug Kit (PIPE-496-B) PIPE-496-B
$39.60 - $39.60
$39.60
$39.60 - $39.60
$39.60
+ GST

Pioneer Brass Welsh Plug Kit (PIPE-496-B)

Suit GM LS Series 1997-2011

GM LS ENGINE PLUG & BARBELLSuit GM LS Series 1997-2011Part Number: PIPE-496-B Pioneer Automotive Industries was founded in 1946 in Meridian, M...

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$39.60 - $39.60
$39.60
$39.60 - $39.60
$39.60
+ GST
Pioneer Brass Welch Plug Kit (PIPE-125-BR) PIPE-125-BR
$55.40 - $55.40
$55.40
$55.40 - $55.40
$55.40
+ GST

Pioneer Brass Welch Plug Kit (PIPE-125-BR)

Suit Big Block Ford 429 - 460

FORD 429 460 SHORT MOTOR BRASSSuit Big Block Ford 429 - 460Part Number: PIPE-125-BR Complete engine block Welch plug and gallery plug kits include...

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$55.40 - $55.40
$55.40
$55.40 - $55.40
$55.40
+ GST
Pioneer Brass Welch Plug Kit (PIPE-114-BR) PIPE-114-BR
$28.20 - $28.20
$28.20
$28.20 - $28.20
$28.20
+ GST

Pioneer Brass Welch Plug Kit (PIPE-114-BR)

Suit Big Block Chrysler 383 - 440

CHRYS BB 383 440 BRASS WELSHSuit Big Block Chrysler 383 - 440Part Number: PIPE-114-BR Complete engine block Welch plug and gallery plug kits inclu...

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$28.20 - $28.20
$28.20
$28.20 - $28.20
$28.20
+ GST
Pioneer Brass Welch Plug Kit (PIPE-113-BR) PIPE-113-BR
$79.20 - $79.20
$79.20
$79.20 - $79.20
$79.20
+ GST

Pioneer Brass Welch Plug Kit (PIPE-113-BR)

Suit Small Block Chrysler 273 - 360

CHRYS SB 273 360 BRASS WELSHSuit Small Block Chrysler 273 - 360Part Number: PIPE-113-BR Complete engine block Welch plug and gallery plug kits inc...

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$79.20 - $79.20
$79.20
$79.20 - $79.20
$79.20
+ GST
Pioneer Brass Welch Plug Kit (PIPE-110-BR) PIPE-110-BR
$71.30 - $71.30
$71.30
$71.30 - $71.30
$71.30
+ GST

Pioneer Brass Welch Plug Kit (PIPE-110-BR)

Suit Big Block Ford FE 332 - 428

FORD FE 332 428 BRASS WELSHSuit Big Block Ford FE 332 - 428Part Number: PIPE-110-BR Complete engine block Welch plug and gallery plug kits include...

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$71.30 - $71.30
$71.30
$71.30 - $71.30
$71.30
+ GST
Pioneer Brass Welch Plug Kit (PIPE-109-BR) PIPE-109-BR
$47.50 - $47.50
$47.50
$47.50 - $47.50
$47.50
+ GST

Pioneer Brass Welch Plug Kit (PIPE-109-BR)

Suit Ford 302 - 351C

FORD 302 351C 400 BRASS WELSHSuit Ford 302 - 351CPart Number: PIPE-109-BR Complete engine block Welch plug and gallery plug kits include brass Wel...

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$47.50 - $47.50
$47.50
$47.50 - $47.50
$47.50
+ GST
Pioneer Brass Welch Plug Kit (PIPE-108-B) PIPE-108-B
$39.60 - $39.60
$39.60
$39.60 - $39.60
$39.60
+ GST

Pioneer Brass Welch Plug Kit (PIPE-108-B)

Suit Ford 221 - 351W

FORD SB 302W 351W BRASS WELSHSuit Ford 221 - 351WPart Number: PIPE-108-B Complete engine block Welch plug and gallery plug kits include brass Welc...

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$39.60 - $39.60
$39.60
$39.60 - $39.60
$39.60
+ GST
Pioneer Brass Welch Plug Kit (PIPE-102-BR) PIPE-102-BR
$79.20 - $79.20
$79.20
$79.20 - $79.20
$79.20
+ GST

Pioneer Brass Welch Plug Kit (PIPE-102-BR)

Suit Big Block Chevy 396 - 454

CHEV BB 454 BRASS WELSH PLUGSuit Big Block Chevy 396 - 454Part Number: PIPE-102-BR Complete engine block Welch plug and gallery plug kits include ...

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$79.20 - $79.20
$79.20
$79.20 - $79.20
$79.20
+ GST
Pioneer Brass Welch Plug Kit (PIPE-101-BR) PIPE-101-BR
$79.20 - $79.20
$79.20
$79.20 - $79.20
$79.20
+ GST

Pioneer Brass Welch Plug Kit (PIPE-101-BR)

Suit Small Block Chevy 400

CHEV SB 400 BRASS WELSH PLUGSuit Small Block Chevy 400Part Number: PIPE-101-BR Complete engine block Welch plug and gallery plug kits include bras...

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$79.20 - $79.20
$79.20
$79.20 - $79.20
$79.20
+ GST
Pioneer MK 5 - 6 Welch Plug Kit (PI830019) PI830019
$63.40 - $63.40
$63.40
$63.40 - $63.40
$63.40
+ GST

Pioneer MK 5 - 6 Welch Plug Kit (PI830019)

Suit Big Block Chevy 1991-97

CHEV BB MK 5 & 6 WELSH PLUGSuit Big Block Chevy 1991-97Part Number: PI830019 Custom designed for each short block application, Pioneer Perform...

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$63.40 - $63.40
$63.40
$63.40 - $63.40
$63.40
+ GST
DART BIG M2 SMALL PARTS KIT BBC DART / 32000022 (DA32000022) DA32000022
$306.40 - $306.40
$306.40
$306.40 - $306.40
$306.40
+ GST

DART BIG M2 SMALL PARTS KIT BBC DART / 32000022 (DA32000022)

Suit Dart Chev Big M2 Blocks

DART BIG M2 SMALL PARTS KITSuit Dart Chev Big M2 BlocksPart Number: DA32000022 Dart's machining and qualifying is designed to maintain the highest...

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$306.40 - $306.40
$306.40
$306.40 - $306.40
$306.40
+ GST
Dart Little M2 Small Parts Kit (DA32000021) DA32000021
$325.20 - $325.20
$325.20
$325.20 - $325.20
$325.20
+ GST

Dart Little M2 Small Parts Kit (DA32000021)

Suit Dart Chev Little M2 Blocks

DART BLOCK SMALL PARTS KIT SBCSuit Dart Chev Little M2 BlocksPart Number: DA32000021 Dart's machining and qualifying is designed to maintain the h...

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$325.20 - $325.20
$325.20
$325.20 - $325.20
$325.20
+ GST
Dart Engine Block Parts Kit - Suit Dart SHP SB Chev (DA32000013) DA32000013
$302.40 - $302.40
$302.40
$302.40 - $302.40
$302.40
+ GST

Dart Engine Block Parts Kit - Suit Dart SHP SB Chev (DA32000013)

Kit Includes Coated Cam Bearings, Freeze Plugs and Dowel Pins

SB CHEV DART SHP BLOCK SMALLKit Includes Coated Cam Bearings, Freeze Plugs and Dowel PinsPart Number: DA32000013 Dart block parts kits include the...

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$302.40 - $302.40
$302.40
$302.40 - $302.40
$302.40
+ GST
Dart Engine Block Parts Kit - Suit Dart BB Chev (DA32000002) DA32000002
$299.70 - $299.70
$299.70
$299.70 - $299.70
$299.70
+ GST

Dart Engine Block Parts Kit - Suit Dart BB Chev (DA32000002)

Kit Includes Coated Cam Bearings, Freeze Plugs and Dowel Pins

DART BBC BLOCK SMALL PARTSKit Includes Coated Cam Bearings, Freeze Plugs and Dowel PinsPart Number: DA32000002 Dart block parts kits include the s...

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$299.70 - $299.70
$299.70
$299.70 - $299.70
$299.70
+ GST
Dart Engine Block Parts Kit - Suit Dart Little M SB Chev (DA32000001) DA32000001
$275.50 - $275.50
$275.50
$275.50 - $275.50
$275.50
+ GST

Dart Engine Block Parts Kit - Suit Dart Little M SB Chev (DA32000001)

Kit Includes Coated Cam Bearings, Freeze Plugs and Dowel Pins

DART BLOCK SMALL PARTS KIT SBCKit Includes Coated Cam Bearings, Freeze Plugs and Dowel PinsPart Number: DA32000001 Dart block parts kits include t...

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$275.50 - $275.50
$275.50
$275.50 - $275.50
$275.50
+ GST
Aeroflow Mitsubishi 4G63 Welsh Plug Kit (AF3000-1010) AF3000-1010
$39.90 - $39.90
$39.90
$39.90 - $39.90
$39.90
+ GST

Aeroflow Mitsubishi 4G63 Welsh Plug Kit (AF3000-1010)

Stainless Steel Material

MITSUBISHI 4G63 WELSH PLUG KITStainless Steel MaterialPart Number: AF3000-1010 These Aeroflow Performance welsh plug kits are designed for sealing...

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$39.90 - $39.90
$39.90
$39.90 - $39.90
$39.90
+ GST
Aeroflow Toyota 1JZ/2JZ Welsh Plug Kit (AF3000-1009) AF3000-1009
$49.40 - $49.40
$49.40
$49.40 - $49.40
$49.40
+ GST

Aeroflow Toyota 1JZ/2JZ Welsh Plug Kit (AF3000-1009)

Stainless Steel Material

TOYOTA 2JZ 1JZ WELSH PLUG KITStainless Steel MaterialPart Number: AF3000-1009 These Aeroflow Performance welsh plug kits are designed for sealing ...

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$49.40 - $49.40
$49.40
$49.40 - $49.40
$49.40
+ GST
Aeroflow Replacement O-Ring for Billet Barbell Plug (AF59-2132) AF59-2132
$7.40 - $7.40
$7.40
$7.40 - $7.40
$7.40
+ GST

Aeroflow Replacement O-Ring for Billet Barbell Plug (AF59-2132)

Suit GM LSBarbell AF64-2132

REPLACEMENT O-RING FOR 64-2132Suit GM LSBarbell AF64-2132Part Number: AF59-2132 Replacement O-Ring for Billet Oil Gallery BarbellAF64-2132. Aerofl...

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$7.40 - $7.40
$7.40
$7.40 - $7.40
$7.40
+ GST
Aeroflow Big Block Chev Welsh Plug Kit (AF3000-1003) AF3000-1003
$58.90 - $58.90
$58.90
$58.90 - $58.90
$58.90
+ GST

Aeroflow Big Block Chev Welsh Plug Kit (AF3000-1003)

Brass Material

BBC 454 WELSH PLUG KITBrass MaterialPart Number: AF3000-1003 These Aeroflow Performance welsh plug kits are designed for sealing up the casting co...

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$58.90 - $58.90
$58.90
$58.90 - $58.90
$58.90
+ GST
Aeroflow Welsh Plug Kit with Billet Barbell (AF64-2125) AF64-2125
$95.10 - $95.10
$95.10
$95.10 - $95.10
$95.10
+ GST

Aeroflow Welsh Plug Kit with Billet Barbell (AF64-2125)

Suit GM LS Series

GM LS WELSH PLUG KITSuit GM LS SeriesPart Number: AF64-2125 The Aeroflow Performance LSseries welsh plug kit is a necessity when rebuilding yourls...

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$95.10 - $95.10
$95.10
$95.10 - $95.10
$95.10
+ GST