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Rear Disc Brake Rotor
Authorized Dealer
Special Offer
Buy 2, Get 5% Off
2 for $0.00•Save $0.00
Rear Disc Brake Rotor
BrandACDelcoLearn More
PositionRear
Qty/Vehicle2
ConditionNew
Includes: (1) Disc Brake Rotor, Hardware
$000
•In Stock•Fast Shipping1
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Product Specifications
Features & Benefits
- •Direct OE fit - no modifications needed
- •Meets or exceeds manufacturer specs
- •24-month warranty included
- •Fast Shipping — ships same day before 3 PM ET
BrandACDelco
Part Number177-0994
Part TypeDisc Brake Rotor
ConditionNew
Qty Per Vehicle2
Abs Tone Ring IncludedNo
Compatibility
Vehicle Compatibility
Guaranteed to fit 0 vehicles from Infinity--Infinity
No compatibility data available
Frequently Asked Questions
We're always here to help. If you can't find your answer, ask Rydon - our AI assistant will help you out.
What vehicles does this Disc Brake Rotor fit?
This ACDelco Disc Brake Rotor (Part #177-0994) fits specific vehicles. Use the compatibility checker on this page to verify fitment for your vehicle.
Is this an OEM or aftermarket part?
This is a premium aftermarket Disc Brake Rotor by ACDelco, designed to meet or exceed OEM specifications with strict quality control standards.
What warranty is included?
This ACDelco Disc Brake Rotor is backed by a 24-month limited warranty covering defects in materials and workmanship from date of purchase.
How long does shipping take?
Fast shipping — orders before 3 PM ET ship the same day. Most arrive within 3-5 business days.
Can I return this if it does not fit?
30-day money-back guarantee. Return unused parts in original packaging for full refund.
Compatibility
Vehicle Compatibility
Guaranteed to fit 0 vehicles from Infinity--Infinity
No compatibility data available
Product Specifications
Brand
ACDelco
Part Type
Disc Brake Rotor
Bearings Included
No
Bolt Circle Diameter (Mm)
139.7 mm
Part Number
177-0994
Abs Tone Ring Included
No
Bolt Circle Diameter (In)
5.5 in
Center Hole Diameter
3.98 IN
Abs Tone Ring IncludedNo
Bearings IncludedNo
Bolt Circle Diameter (In)5.5 in
Bolt Circle Diameter (Mm)139.7 mm
Center Hole Diameter3.98 IN
Conventional Or Drum-In-Hat Type RotorConventional
Grade TypeRegular
Inside Diameter8.27 IN
Length (In)15.12 in
MaterialCast Iron
Mounting Bolt Hole Circle Diameter139.67 IN
Outside Diameter12.28 IN
Overall Rotor Diameter (Mm)312mm
Solid Or Vented Type RotorSolid
Stud/Lug Hole Circle Diameter5.5 IN
Stud/Lug Hole Diameter0.54 IN
Surface TypeSmooth
Bolt Hole Quantity6
ConstructionFull Cast
Directional Or Non-Directional Brake SurfaceNon-Directional
Disc FinishGround
Discard Thickness0.41 IN
Features Benefits - Bullet 1Most GM OE brake rotors sold in the U.S are Ferritic Nitro-Carburized, or FNC rotor
Features Benefits - Bullet 10Manufactured to OE Dimensional Controls to help reduce the risk of pulsation
Features Benefits - Bullet 11GM engineers specify rotor material compositions for each GM vehicle application
Features Benefits - Bullet 12Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
Features Benefits - Bullet 13GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
Features Benefits - Bullet 14GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
Features Benefits - Bullet 15GM regularly updates production and service part designs to integrate new materials and technologies
Features Benefits - Bullet 2OE brake components are specifically designed to work with your GM vehicle safety systems
Features Benefits - Bullet 3Most GM OE brake rotors sold in the U.S. are Ferritic Nitro-Carburized, or FNC rotors
Features Benefits - Bullet 4FNC rotors are hardened and strengthened during an extended manufacutirng process that helps provides an extra defensive barrier against the corrosive threat of water, sale, and even acid rain
Features Benefits - Bullet 5OE brake systems and components are required to meet Federal Motor Vehicle Safety Standards (FMVSS)
Features Benefits - Bullet 6OE brake components are specifically designed to work with your GM vehicle safety systems
Features Benefits - Bullet 7Carbon ceramic brake rotors are used in high performance vehicles because the carbon fibers provide strength and the ceramic rotors are lighter than standard iron
Features Benefits - Bullet 8Designed to meet GM resonant frequency separation requirements to help reduce the risk of brake noise
Features Benefits - Bullet 9Designed to customer vehicle parameters to resist thermal roughness
Good Maintenance Practices - Section 1 - Bullet 1Check brake fluid level at every oil change. Replace fluid according to owner's manual recommendations.
Good Maintenance Practices - Section 1 - Bullet 2Calipers and wheel cylinders should be checked every brake inspection and serviced or replaced as required.
Good Maintenance Practices - Section 1 - Bullet 3Inspect the brake lines for rust, punctures, or visible leaks (You may be able to do this, but consult a qualified technician if necessary).
Good Maintenance Practices - Section 1 - Bullet 4Check the thickness of your brake pads.
Good Maintenance Practices - Section 1 - Bullet 9The following should be conducted by a qualified technician:
Good Maintenance Practices - Section 1 - HeaderThe following inspections and maintenance procedures can help prevent potential brake problems.
Good Maintenance Practices - Section 2 - Bullet 1Inspection of the brake hoses for brittleness or cracking.
Good Maintenance Practices - Section 2 - Bullet 2Inspection of brake lining and pads for wear or contamination by brake fluid or grease.
Good Maintenance Practices - Section 2 - Bullet 3Inspection of wheel bearings and grease seals.
Good Maintenance Practices - Section 2 - Bullet 4Parking brake adjustments (as needed).
Hat FinishCoated
Height (In)2.6 in
Height (Mm)66.3 mm
Lug Quantity6
Nominal Thickness0.47 IN
Overall Height2.67 IN
Product DescriptionGM Genuine Parts Disc Brake Rotors are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts OE Brake Rotors are the true OE parts installed durin
Programming RequiredNo
Rust Resistant CoatingYes
Signs Of Wear Troubleshooting - Section 1 - Bullet 1Visible ridges or deep grooves on the rotor surface.
Signs Of Wear Troubleshooting - Section 1 - HeaderVehicle pulls to the left or right when brakes are applied.
SlottedNo
Stud/Lug Hole Quantity6
Weight13.71 LB
Width (In)14.5 in
Check if this fitsShop worry-free by verifying fitment first. If the part doesn't fit, we'll make it right or refund you. Learn more
Main Image
Click to expand
Rear Disc Brake Rotor
Authorized Dealer
Special Offer
Buy 2, Get 5% Off
2 for $0.00•Save $0.00
Call for Price
888-477-2530Our parts specialists are ready to help you find the best price.
Part #:177-0994
OE REPLACEMENT
Rear Disc Brake Rotor
|
Part #:177-0994
|
Disc Brake Rotor
Call for Price
888-477-2530Our parts specialists are ready to help you find the best price.
Quantity:
1
In Stock·10 or more available
Fast delivery between Mon, Jun 22 to Mon, Jun 22
Ships To:Key Features
OEM-Equivalent QualityMeets/exceeds factory specs
American BusinessMaryland since 1986
24-Month WarrantyLimited coverage on every part
Fast Same Day ShippingWe ship all orders the same business day before cutoff
Product Specs
BrandACDelco
Part Number177-0994
Part TypeDisc Brake Rotor
ConditionNew
Abs Tone Ring IncludedNo
Bearings IncludedNo
Bolt Circle Diameter (In)5.5 in
Bolt Circle Diameter (Mm)139.7 mm
Compatibility
Vehicle Compatibility
Guaranteed to fit 0 vehicles from Infinity--Infinity
No compatibility data available
Questions & Answers
This ACDelco Disc Brake Rotor (Part #177-0994) fits specific vehicles. Use the compatibility checker on this page to verify fitment for your vehicle.
This is a premium aftermarket Disc Brake Rotor by ACDelco, designed to meet or exceed OEM specifications with strict quality control standards.
This ACDelco Disc Brake Rotor is backed by a 24-month limited warranty covering defects in materials and workmanship from date of purchase.
Fast shipping — orders before 3 PM ET ship the same day. Most arrive within 3-5 business days.
30-day money-back guarantee. Return unused parts in original packaging for full refund.
Have a Question?
Ask Marvin, our Car Expert
Offline
Things to Know
About This Disc Brake Rotor
This ACDelco automotive component is engineered to meet or exceed OEM specifications for reliable performance and long service life.
Key Features
- Meets or exceeds OEM specifications
- Direct-fit replacement design
- Rigorously tested for durability
- Professional-grade construction
- Backed by manufacturer warranty
Signs This Part Needs Replacement
- •Unusual noises from the component area
- •Decreased vehicle performance
- •Warning lights on dashboard
- •Visible wear or damage
- •Failed vehicle inspection
ACDelco
Trusted Automotive Brand
ACDelco is a trusted manufacturer of quality automotive parts.
View all ACDelco productsInstallation Guide
Moderate
1-3 hours
Tools Needed
Basic hand toolsTorque wrenchVehicle service manual
Frequently Asked Questions
WARNING: Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which are known to the State of California to cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/motor-vehicle-parts