How to replace the alternator bracket on a 4.3L engine on 2008 GMC Sierra 1500?

Begin 4.3l engine generator bracket replacement by removing the generator and drive belt tensioner and idler pulley. Begin by removing the bolts and nut that secure the generator bracket before you can extract the generator bracket itself. Place the generator bracket onto the stud before securing it with bolts and nut according to the fastener notice and tightening them to 41 n.m (30 lb ft). Reinstall the drive belt idler pulley first and then proceed with the drive belt tensioner before attaching the generator.

OEM 2008 GMC Sierra 1500 Alternator Bracket

Alternator Mount

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2 Alternator Brackets found

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2008 GMC Sierra 1500 Mount Bracket Part Number: 12554030
$96.56 MSRP: $163.23
You Save: $66.67 (41%)
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Product Specifications
- Other Name: Bracket, Generator Mounting; Alternator Bracket; Bracket; Bracket, Power Brake Booster
- Item Weight: 7.70 Pounds
- Item Dimensions: 5.8 x 19.3 x 13.0 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12554030
- Warranty: This genuine part is guaranteed by GM's factory warranty.
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Fits the following 2008 GMC Sierra 1500 Submodels:
- Base, C3, Denali, HT, Hybrid, SL, SLE, SLT, WT, XFE | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L FULL HYBRID EV-FLEX (FHEV), 8 Cyl 6.0 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 6.0 L GAS, 8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
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2008 GMC Sierra 1500 Idler Pulley Part Number: 10236997
$91.02 MSRP: $153.85
You Save: $62.83 (41%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Bracket, Engine Cooling; Alternator Bracket; Mount Bracket; Tensioner Bracket; Accessory Bracket; Generator Mounting Support.
- Item Weight: 6.60 Pounds
- Item Dimensions: 13.1 x 8.2 x 8.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 10236997
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2008 GMC Sierra 1500 Submodels:
- Base, HT, SL, SLE, SLT, WT | 6 Cyl 4.3 L GAS

2008 GMC Sierra 1500 Alternator Bracket

With a comprehensive array of OEM 2008 GMC Sierra 1500 Alternator Bracket, from fuel pumps to door handles, our website is a one-stop-shop for your needs. All our genuine 2008 GMC Sierra 1500 Alternator Bracket are backed by the manufacturer's warranty and are offered at competitive prices in the market. Rest assured, you can shop with complete confidence.

2008 GMC Sierra 1500 Alternator Bracket Parts and Q&A

Q: How to replace the alternator bracket on a 4.3L engine on 2008 GMC Sierra 1500?
A: Begin 4.3l engine generator bracket replacement by removing the generator and drive belt tensioner and idler pulley. Begin by removing the bolts and nut that secure the generator bracket before you can extract the generator bracket itself. Place the generator bracket onto the stud before securing it with bolts and nut according to the fastener notice and tightening them to 41 n.m (30 lb ft). Reinstall the drive belt idler pulley first and then proceed with the drive belt tensioner before attaching the generator.