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Mr. Gasket

Mr. Gasket Header Bolts 3409 Fasteners, Bolts, Hex Head, Steel, Black Oxide, Chevy, Chrysler, Pontiac, Set of 12

SKU: MRG3409

Header Fasteners
Mr. Gasket Header Bolts 3409 Fasteners, Bolts, Hex Head, Steel, Black Oxide, Chevy, Chrysler, Pontiac, Set of 12

Mr. Gasket

Mr. Gasket Header Bolts 3409 Fasteners, Bolts, Hex Head, Steel, Black Oxide, Chevy, Chrysler, Pontiac, Set of 12

SKU: MRG3409

Header Fasteners
A$89.84
IN STOCK! Est Ship 4-7 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.
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Description

Installing headers can sometimes be a real pain, due to the tight spaces and the location and shape of the tubes. Mr. Gasket can help make installation a little easier and also help prevent annoying exhaust leaks from under-tightened header bolts. They have both the socket-head and hex-head styles of header bolts available. Hex types are heat-treated Grade 5 steel and have smaller-than-standard heads to ease access in tight spaces. Socket-head bolts are made from stronger Grade 8 steel for added ruggedness and they're great for those really difficult-to-reach spots. Both styles have a protective black oxide finish.

Part Type

Header Bolts- 3/8in Head

Data: v4.2 - Upd: 2026-10-14 17:10:11

Specifications

Product Attributes - Brand
Mr. Gasket
Product Attributes - Manufacturer's Part Number
3409
Product Attributes - Part Type
Header Fasteners
Product Attributes - Product Line
Mr. Gasket Header Bolts
Product Attributes - UPC
084041034095
Product Attributes - Fastener Style
Bolt
Product Attributes - Thread Size
3/8 in.-16
Product Attributes - Head Style
Hex
Product Attributes - Underhead Length (in.)
0.750 in.
Product Attributes - Underhead Length (mm)
19.00mm
Product Attributes - Fastener Material
Steel
Product Attributes - Fastener Color
Black
Product Attributes - Quantity
Sold as a set of 12.

Reference Information

Brand Name/s Mr. Gasket
StreetFX SKU mrg3409
SFX Item ID 4982283
Supplier Item Code 4982283
Manufacturer SKU 3409
Manufacturer UPC 84041034095

Compatibility

Application Data
  • UniversalNo
    MakePONTIAC
    Engine TypeV8
    Engine Size7.0L/428
    Engine FamilyPontiac V8
  • UniversalNo
    MakePONTIAC
    Engine TypeV8
    Engine Size7.5L/455
    Engine FamilyPontiac V8
  • UniversalNo
    MakeCHEVROLET
    Engine TypeV8
    Engine Size4.4L/267
    Engine FamilyChevy small block Gen I
  • UniversalNo
    MakeCHEVROLET
    Engine TypeV8
    Engine Size4.6L/283
    Engine FamilyChevy small block Gen I
  • UniversalNo
    MakeCHEVROLET
    Engine TypeV8
    Engine Size5.0L/302
    Engine FamilyChevy small block Gen I
  • UniversalNo
    MakeCHEVROLET
    Engine TypeV8
    Engine Size5.0L/305
    Engine FamilyChevy small block Gen I
  • UniversalNo
    MakeCHEVROLET
    Engine TypeV8
    Engine Size5.0L/307
    Engine FamilyChevy small block Gen I
  • UniversalNo
    MakeCHEVROLET
    Engine TypeV8
    Engine Size5.4L/327
    Engine FamilyChevy small block Gen I
  • UniversalNo
    MakeCHEVROLET
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyChevy small block Gen I
  • UniversalNo
    MakeCHEVROLET
    Engine TypeV8
    Engine Size6.6L/400
    Engine FamilyChevy small block Gen I
  • UniversalNo
    MakeCHRYSLER
    Engine TypeV8
    Engine Size5.9L/361
    Engine FamilyMopar big block B
  • UniversalNo
    MakeCHRYSLER
    Engine TypeV8
    Engine Size6.3L/383
    Engine FamilyMopar big block B
  • UniversalNo
    MakeCHRYSLER
    Engine TypeV8
    Engine Size6.6L/400
    Engine FamilyMopar big block B
  • UniversalNo
    MakeCHRYSLER
    Engine TypeV8
    Engine Size6.8L/413
    Engine FamilyMopar big block RB
  • UniversalNo
    MakeCHRYSLER
    Engine TypeV8
    Engine Size7.0L/426
    Engine FamilyMopar big block RB
    Application NotesFits wedge engines.
  • UniversalNo
    MakeCHRYSLER
    Engine TypeV8
    Engine Size7.2L/440
    Engine FamilyMopar big block RB
  • UniversalNo
    MakePONTIAC
    Engine TypeV8
    Engine Size4.3L/265
    Engine FamilyPontiac V8
  • UniversalNo
    MakePONTIAC
    Engine TypeV8
    Engine Size4.7L/287
    Engine FamilyPontiac V8
  • UniversalNo
    MakePONTIAC
    Engine TypeV8
    Engine Size4.9L/301
    Engine FamilyPontiac V8
  • UniversalNo
    MakePONTIAC
    Engine TypeV8
    Engine Size5.3L/326
    Engine FamilyPontiac V8
  • UniversalNo
    MakePONTIAC
    Engine TypeV8
    Engine Size5.7L/347
    Engine FamilyPontiac V8
  • UniversalNo
    MakePONTIAC
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyPontiac V8
  • UniversalNo
    MakePONTIAC
    Engine TypeV8
    Engine Size6.4L/389
    Engine FamilyPontiac V8
  • UniversalNo
    MakePONTIAC
    Engine TypeV8
    Engine Size6.6L/400
    Engine FamilyPontiac V8
  • UniversalNo
    MakePONTIAC
    Engine TypeV8
    Engine Size6.9L/421
    Engine FamilyPontiac V8

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