GMC G25 Engine Parts

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GMC G25

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-20%

Powermaster |

#25527296

Powermaster 27296 Smooth Look Alternator, 100 Amps, Serp, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Polished

$222.99

/each

$278.75

-20%

Powermaster |

#25547295

Powermaster 47295 Smooth Look Alternator, 140A, V-belt, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

140 amp

Alternator Finish:

Natural

$219.99

/each

$275.00

-18%

Powermaster |

#25537295

Powermaster 37295 Smooth-Look Chrome Alternator, 140 Amp, GM 12SI

One Wire Alternator:

Yes

Alternator Amperage:

150 amp

Alternator Finish:

Chrome

$290.99

/each

$357.50

-17%

Powermaster |

#25517295

Powermaster 17295 Smooth Look Alternator, 100A, V-belt, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Chrome

$228.99

/each

$278.75

-22%

Powermaster |

#2557295

Powermaster 7295 Smooth Look Alternator, 100A, V-belt, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Natural

$173.99

/each

$223.75

GM Rally Wheels

Choosing new wheels for a GMC Chevrolet truck. This project uses Speedway Motors GM Rally Wheels and new tires to enhance the appearance of the truck.

65 Nova Engine Suggestions

In this Tech Tip, John gets to answer a favorite question of ours, what engine should I get?

Racing a 602 GM Crate Engine

All you need to know about racing a 602 GM crate engine and the necessary parts to make a race ready engine.

55 Chevy Engine Build

Derek kicks off his 55 Chevy rebuild with a fresh small block.

Speedway Motors Introduces New IMCA Modified Spec Racing Engine as they Kick Off 2025 Race Season

Speedway Motors announced today the introduction of a new IMCA Modified Spec Racing Engine as they kick off the 2025 race season along with discounts Jan. 27-Feb. 2 to help their customers get ready for race season.

GM 10-Bolt Identification and Upgrades | 7.625, 7.5, 8.2, 8.5, 8.6

GM’s 10-bolt rear axle has been around since the 1960s, here’s how to determine if your junkyard find is worth taking home

Seven Decades of Speedway Motors: Carson, Craig & Clay Smith | Episode 25

For this special anniversary episode we celebrate 70 years of Speedway Motors with Carson, Craig, and Clay Smith. As the sons of "Speedy" Bill and Joyce Smith, they were there for it all as the business and the family grew up together.

-20%

Powermaster |

#2558003

Powermaster 8003 Race Alternator, 70 Amps, V-belt, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

70 amp

Alternator Finish:

Natural

$146.99

/each

$185.00

-18%

Powermaster |

#255179261

Powermaster 179261 Street Alternator, 100 Amps, V-belt, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Chrome

$273.99

/each

$336.25

-22%

Powermaster |

#25567295

Powermaster 67295 Smooth Look Alternator, 150A, V-belt, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

150 amp

Alternator Finish:

Polished

$275.99

/each

$357.50

-20%

Powermaster |

#25527295

Powermaster 27295 Smooth Look Alternator, 100A, V-belt, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Polished

$222.99

/each

$278.75

-18%

Powermaster |

#2558500

Powermaster 8500 GM Marine/Off Road 1-Wire Alternator

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Natural

$215.99

/each

$263.75

-18%

Powermaster |

#2558060

Powermaster 8060 Race Alternator, 70 Amps, V-belt, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

70 amp

Alternator Finish:

Natural

$182.99

/each

$223.75

-21%

Powermaster |

#255279261

Powermaster 279261 Street Alternator, 100 Amps, V-belt, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Polished

$263.99

/each

$336.25

-21%

Powermaster |

#2558068

Powermaster 8068 Race Alternator, 100 Amps, Internal, GM

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Powder Coated

$274.99

/each

$351.25

K&N E-1500 Lifetime Performance Air Filter

K&N |

#465E1500

K&N E-1500 Lifetime Performance Air Filter

Material Type:

Cotton Gauze

Shape:

Round

$104.99

/each

-21%

Powermaster |

#25567294

Powermaster 67294 GM 12si Alternator, 150A, 1V Belt, Polished

One Wire Alternator:

Yes

Alternator Amperage:

150 amp

Alternator Finish:

Polished

$269.99

/each

$343.75

-9%

PerTronix |

#447D9000

PerTronix D9000 Flame-Thrower HEI Dust Cover

Cap Type:

HEI / Male

Cap Terminal Style:

HEI / Male

$35.35

/each

$38.89

-18%

Powermaster |

#25567293313

Powermaster 67293-313 Street Alternator, 150 Amps, Serp, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

150 amp

Alternator Finish:

Polished

$240.99

/each

$295.00

-21%

Powermaster |

#25567294311

Powermaster 67294-311 Street Alternator, 150 Amps, Serp, 12V, GM

One Wire Alternator:

Yes

Alternator Amperage:

150 amp

Alternator Finish:

Polished

$275.99

/each

$352.50

-15%

Tuff Stuff |

#7453689B

Tuff Stuff 3689B GM Starter, Full Size, Cast Iron Nose, Black

Starter Size:

Full Size

Flywheel/Flexplate Tooth Count:

168-tooth

Mount Type:

Bolt-On

$285.99

/each

$336.79

New Product

Enginetech |

#17300527

Enginetech P5017(8)030 SBC 350 Piston Set, .030in, Hypereutectic

$288.99

/each

New Product

Enginetech |

#17300519

Enginetech P1505(8)040 SBC 350 Piston Set, .040in, Dish Top

$216.99

/each

New Product

Enginetech |

#17300520

Enginetech P1505(8)060 SBC 350 Piston Set, .060in, Dish Top

$216.99

/each

New Product

Enginetech |

#17300518

Enginetech P1505(8)030 SBC 350 Piston Set, .030in, Dish .080in

$216.99

/each

$104 Off

Powermaster |

#25558414

Powermaster 58414 GM AD230 Alternator, 165A, 6-Groove, Black

One Wire Alternator:

Yes

Alternator Amperage:

165 amp

Alternator Finish:

Powder Coated

$311.99

/each

$416.25

-24%

Powermaster |

#25567293

Powermaster 67293 GM 12SI 150 Amp Alternator, Polished

(15)

One Wire Alternator:

Yes

Alternator Amperage:

150 amp

Alternator Finish:

Polished

$197.99

/each

$263.75

Edelbrock |

#32541443

Edelbrock 41443 Classic Series Valve Cover Set, Small Block Chevy

(1)

Valve Cover Height:

Stock

Valve Cover Mounting Style:

Perimeter Bolt

Material Type:

Cast Aluminum

$334.95

/set

-19%

Powermaster |

#25537293

Powermaster 37293 GM 12SI 150 Amp Alternator, Chrome

(49)

One Wire Alternator:

Yes

Alternator Amperage:

150 amp

Alternator Finish:

Chrome

$211.99

/each

$263.75

-25%

Powermaster |

#2558002

Powermaster 8002 12SI GM Alternator, 100 Amp

(8)

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Natural

$146.99

/each

$197.50

Edelbrock |

#3257549

Edelbrock 7549 Valve Cover Gasket Set, 0.313 Inch, Small Block Chevy

(5)

Sold in Quantity:

Pair

Gasket Material:

Core reinforced composite

Overall Thickness:

0.313"

$36.95

/set

Holley |

#42524183

Holley 241-83 SB Chevy M/T Valve Covers, Satin Black, Cast Aluminum

Valve Cover Height:

Tall

Valve Cover Mounting Style:

Perimeter Bolt

Material Type:

Aluminum

$144.95

/pair

Vintage Air |

#725151110

Vintage Air 151110 SBC Chevy Compressor Only Bracket Kit

Material Type:

Steel

Hardware Included:

Yes

Finish:

Natural

$144.99

/kit

$151 Off

Powermaster |

#91068125

Powermaster 8-721 SB Chevy 100 Amp Mini Alternatorw/ V-Belt Kit

One Wire Alternator:

Yes

Alternator Amperage:

100 amp

Alternator Finish:

Powder Coated

$404.99

/each

$556.25

$102 Off

Powermaster |

#25537294

Powermaster 37294 12SI GM Alternator, 150 Amp, Chrome

(1)

One Wire Alternator:

Yes

Alternator Amperage:

150 amp

Alternator Finish:

Chrome

$226.99

/each

$328.75

-28%

Powermaster |

#25557294

Powermaster 57294 GM 12SI 150 Amp Alternator, Black

(4)

One Wire Alternator:

Yes

Alternator Amperage:

150 amp

Alternator Finish:

Powder Coated

$188.99

/each

$263.75

Edelbrock |

#3254145

Edelbrock 4145 Chevy 262-400 V8 Valve Covers

(3)

Valve Cover Mounting Style:

Perimeter Bolt

Material Type:

Aluminum

Finish:

Polished

$399.95

/pair

Edelbrock |

#3254443

Edelbrock 4443 Signature Series Black Valve Cover Set, SB Chevy

(5)

Valve Cover Height:

Stock

Valve Cover Mounting Style:

Perimeter Bolt

Material Type:

Steel

$65.95

/set

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GMC G25 Engine Parts

Year

Subcategory

Part

Brand

Transmission Family

Availability

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Price

Customer Rating

Products

Powermaster 27296 Smooth Look Alternator, 100 Amps, Serp, 12V, GM

Powermaster 47295 Smooth Look Alternator, 140A, V-belt, 12V, GM

Powermaster 37295 Smooth-Look Chrome Alternator, 140 Amp, GM 12SI

Powermaster 17295 Smooth Look Alternator, 100A, V-belt, 12V, GM

Powermaster 7295 Smooth Look Alternator, 100A, V-belt, 12V, GM

Related Articles

Powermaster 8003 Race Alternator, 70 Amps, V-belt, 12V, GM

Powermaster 179261 Street Alternator, 100 Amps, V-belt, 12V, GM

Powermaster 67295 Smooth Look Alternator, 150A, V-belt, 12V, GM

Powermaster 27295 Smooth Look Alternator, 100A, V-belt, 12V, GM

Powermaster 8500 GM Marine/Off Road 1-Wire Alternator

Powermaster 8060 Race Alternator, 70 Amps, V-belt, 12V, GM

Powermaster 279261 Street Alternator, 100 Amps, V-belt, 12V, GM

Powermaster 8068 Race Alternator, 100 Amps, Internal, GM

K&N E-1500 Lifetime Performance Air Filter

Powermaster 67294 GM 12si Alternator, 150A, 1V Belt, Polished

PerTronix D9000 Flame-Thrower HEI Dust Cover

Powermaster 67293-313 Street Alternator, 150 Amps, Serp, 12V, GM

Powermaster 67294-311 Street Alternator, 150 Amps, Serp, 12V, GM

Tuff Stuff 3689B GM Starter, Full Size, Cast Iron Nose, Black

Enginetech P5017(8)030 SBC 350 Piston Set, .030in, Hypereutectic

Enginetech P1505(8)040 SBC 350 Piston Set, .040in, Dish Top

Enginetech P1505(8)060 SBC 350 Piston Set, .060in, Dish Top

Enginetech P1505(8)030 SBC 350 Piston Set, .030in, Dish .080in

Powermaster 58414 GM AD230 Alternator, 165A, 6-Groove, Black

Powermaster 67293 GM 12SI 150 Amp Alternator, Polished

Edelbrock 41443 Classic Series Valve Cover Set, Small Block Chevy

Powermaster 37293 GM 12SI 150 Amp Alternator, Chrome

Powermaster 8002 12SI GM Alternator, 100 Amp

Edelbrock 7549 Valve Cover Gasket Set, 0.313 Inch, Small Block Chevy

Holley 241-83 SB Chevy M/T Valve Covers, Satin Black, Cast Aluminum

Vintage Air 151110 SBC Chevy Compressor Only Bracket Kit

Powermaster 8-721 SB Chevy 100 Amp Mini Alternatorw/ V-Belt Kit

Powermaster 37294 12SI GM Alternator, 150 Amp, Chrome

Powermaster 57294 GM 12SI 150 Amp Alternator, Black

Edelbrock 4145 Chevy 262-400 V8 Valve Covers

Edelbrock 4443 Signature Series Black Valve Cover Set, SB Chevy