Cost and coverage
How this repair affects warranty value
Alternator replacement uses $613 to $800 for parts. At the $147.62 median modeled metro rate, the midpoint repair time plus 0 diagnostic hours adds about $242. The published benchmark and its date are listed separately; this calculation is a planning estimate. Tax and shop supplies are excluded.
Service-contract coverage for this repair has not been verified here. Ask for the quoted agreement's covered-part, failure-cause and exclusion clauses before assuming reimbursement. Confirm the claim procedure before authorizing work and keep the diagnosis in writing.
See all starting and charging repairsBefore authorizing a repair
What to check before paying for alternator replacement
Check what the repair price includes
The estimate is for per repair. Parts cost $613 to $800; repair labor is modeled at 1.33 to 1.95 hours, plus 0 diagnostic hours at each endpoint and the midpoint.
The published benchmark excludes taxes, fees and related repairs. Access varies substantially by engine layout. The published national range is not a quote for a particular vehicle. Taxes, fees and related repairs are excluded. Ask the shop to identify which of those items are included before comparing two totals.
Compare the estimate with a shop quote
This repair totals about $949 using a $147.62 hourly rate, the median modeled midpoint across our metros. We calculate that amount from our assumptions; it is not an observed average bill for your exact car.
This repair category uses a published RepairPal benchmark. Your engine, how hard the part is to reach and the choice of replacement part can still put a quote outside that range.
Check the cause as well as the component
A contract can list starting and charging coverage and still exclude the cause of this failure. Ask the administrator about diagnosis, labor-rate limits, connected damage and preauthorization before the shop starts work.
Factory coverage and an open safety recall are separate checks. Use NHTSA's VIN recall lookup to check the individual vehicle; a model-level recall count cannot tell you whether your car is affected.
Ask for these details in writing
- The diagnosed condition, the part number and the number of assemblies being replaced.
- Parts type, labor hours or flat-rate charge, diagnosis, fluids, calibration and taxes as separate lines where applicable.
- What you owe if the repair is declined or a contract claim is denied.
- The repair warranty and the amount that requires your approval before extra work begins.
The FTC's repair guide recommends a written estimate identifying the condition, parts and labor. Its service-contract guidance explains why authorization, exclusions and reimbursement limits matter.
RepairPal · Source updated 2026-09-03; checked 2026-10-18. Current source prices may differ.
Need to describe a symptom before a diagnosis? Choose the exact vehicle and open the underlying source. Our mechanic-visit guide helps you record when the symptom occurs. A symptom match alone does not justify replacing this part.
Evidence behind the price
What supports the alternator replacement estimate?
This category has an attached RepairPal benchmark. Its local estimate still uses modeled labor and broad vehicle assumptions.
Published benchmarkAttachedRepairPal, source date 2026-09-03.
Model-specific repair ranges00 named model ranges are retained for this repair. A nameplate range does not establish the price for every year or trim.
Local laborModeledCity totals apply our labor assumptions. Diagnosis, parts choice and approved hours still need a vehicle-specific quote.
Library audit reviewed October 18, 2026. Source dates are retained; the review does not turn assumptions into observed prices.
Cost-library audit
30 of 44 repair categories have verified national benchmarks; 14 retain planning assumptions. Old model-specific ranges were removed because this refresh did not reverify them.
44 repair categories; a content audit, not a market survey
See the analysis, charts and method →Manufacturer-path review
The 21 selected non-recall files include software, service, diagnosis-dependent and component paths. The procedure attached to a confirmed condition can be more specific than a replacement estimate for the named system.
All 21 non-recall files in the retained collection; manual editorial classification
See the analysis, charts and method →Documented conditions
What the source records say about this component
2 selected problem files name this component or its manufacturer repair path. The file can describe inspection, software or a smaller repair, so a match does not establish that this complete assembly needs replacement.
Official NHTSA safety recall
GMC Sierra 1500 · 2019, 2020
An intermittent electrical connection between the B+ battery cable and the alternator could cause the vehicle to stall, increasing the risk of a crash. The intermittent connection could also lead to electrical arcing, which could generate sufficient heat to damage surrounding material, increasing the risk of a fire.
- Affected scope
- NHTSA model names: SIERRA 1500. Model years: 2019, 2020.. NHTSA campaign 19V888000. The complete campaign lists 350,371 potentially affected units across all listed vehicles.. A make, model and year match does not establish VIN eligibility.
- Manufacturer check or remedy
- GM will notify owners, and dealers will inspect for the presence of glue or other contamination at the B+ cable attachment to the alternator and clean the connection and reattach the B+ cable connection, as necessary. If arcing has damaged the cable, nut, or alternator, the dealer will replace the damaged components. All services will be performed free of charge. GM issued owners an interim notification on February 4, 2020. GM issued second notice and the recall began March 9, 2019. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-888-988-7267. GM's number for this recall is N192273510.
Safety and eligibility limits in this source
- Confirm VIN eligibility and current remedy instructions with the manufacturer.
- The model-year list is not proof that an individual vehicle is affected.
Official safety recall
Nissan Titan · 2017, 2018, 2019
An electrical short may cause an engine stall, increasing the risk of a crash. In addition, it increases the risk of a fire.
- Affected scope
- NHTSA model names: TITAN. Model years: 2017, 2018, 2019.. NHTSA campaign 19V495000. The complete campaign lists 91,319 potentially affected units across all listed vehicles.. A make, model and year match does not establish VIN eligibility.
- Manufacturer check or remedy
- Nissan will notify owners, and dealers will inspect the alternator harness for the proper routing and any damage. The harness will be clipped into the correct position or replaced as necessary, free of charge. The recall began August 8, 2019. Owners may contact Nissan customer service at 1-800-867-7669.
Safety and eligibility limits in this source
- Confirm VIN eligibility and current remedy instructions with the manufacturer.
- The model-year list is not proof that an individual vehicle is affected.
Check who is responsible before paying
An open recall, a warranty extension and a service bulletin have different eligibility rules. Check your VIN with the manufacturer and confirm any time, mileage or diagnosed-condition limits. A bulletin alone does not promise a free repair. Existing faults generally fall outside a newly purchased service contract.
