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CNC machined automotive part Precision automotive component
On-Demand CNC Platform

CNC Machined
Transmission Parts

We machine transmission parts for US automotive teams. Gear housings, shift forks, input shafts, and valve bodies from aluminum, steel, and ductile iron.

Upload your STEP file for immediate pricing and DFM feedback.

5-Axis
Complex geometry
capability
RivCut capability
±0.001"
Precision tolerances
CMM verified
RivCut standard
PPAP
Documentation
available
Quality system
3-Day
Rush prototypes
available
Simple geometries
IATF 16949
PPAP
ISO 9001

Transmission Parts CNC Machining
Across the US

Click any highlighted state to find city-specific transmission parts machining pages.

Cities available Coming soon

Transmission Parts for US Teams

Gear housings, shift forks, input shafts, and valve bodies machined to print.

Gear Housings

Aluminum and iron transmission housings with precise bearing bore and alignment features.

Al & ductile iron

Shift Forks

Steel shift forks with precise rail bore fits and engagement pad geometry.

4140 steel

Input & Output Shafts

4340 steel transmission shafts with precise spline forms, bearing journals, and snap ring grooves.

4340 steel

Clutch Drums

Aluminum and steel clutch drum housings with precise spline forms and clutch pack bores.

Spline forms

Valve Bodies

Aluminum hydraulic valve bodies with precise spool bore diameters and check ball seat machining.

Spool bores

Bearing Carriers

Aluminum bearing carrier housings with precise press-fit bore diameters and register surfaces.

Press-fit bores
Materials
Multiple alloys
Tolerances
Down to ±0.001"
Finishes
Anodize, Passivation, Hard Coat
Certifications
Material certs & inspection

Transmission Parts CNC Machining
by City

We ship precision transmission parts to teams in 110 cities across the US.

San Jose

California

Chicago

Illinois

Los Angeles

California

Houston

Texas

Dallas

Texas

Detroit

Michigan

Minneapolis

Minnesota

Seattle

Washington

Boston

Massachusetts

Philadelphia

Pennsylvania

Phoenix

Arizona

Denver

Colorado

Cleveland

Ohio

Cincinnati

Ohio

Pittsburgh

Pennsylvania

St. Louis

Missouri

Nashville

Tennessee

Austin

Texas

Raleigh

North Carolina

Charlotte

North Carolina

Atlanta

Georgia

Portland

Oregon

Salt Lake City

Utah

Milwaukee

Wisconsin

Indianapolis

Indiana

Columbus

Ohio

Louisville

Kentucky

Fort Worth

Texas

Buffalo

New York

Hartford

Connecticut

Wichita

Kansas

Tucson

Arizona

Huntsville

Alabama

San Antonio

Texas

Jacksonville

Florida

Kansas City

Missouri

Dayton

Ohio

Rochester

New York

Albany

New York

Sacramento

California

Albuquerque

New Mexico

Tampa

Florida

Orlando

Florida

Miami

Florida

Baltimore

Maryland

San Diego

California

San Francisco

California

Las Vegas

Nevada

Reno

Nevada

Boise

Idaho

Rockford

Illinois

Peoria

Illinois

Grand Rapids

Michigan

Ann Arbor

Michigan

Lansing

Michigan

Green Bay

Wisconsin

Madison

Wisconsin

Omaha

Nebraska

Des Moines

Iowa

Cedar Rapids

Iowa

Charleston

South Carolina

Greenville

South Carolina

Memphis

Tennessee

Birmingham

Alabama

Richmond

Virginia

Virginia Beach

Virginia

Colorado Springs

Colorado

Spokane

Washington

El Paso

Texas

Oklahoma City

Oklahoma

Tulsa

Oklahoma

Baton Rouge

Louisiana

New Orleans

Louisiana

New York

New York

Akron

Ohio

Toledo

Ohio

Greensboro

North Carolina

Winston-Salem

North Carolina

Durham

North Carolina

Providence

Rhode Island

Springfield

Massachusetts

Worcester

Massachusetts

Allentown

Pennsylvania

Harrisburg

Pennsylvania

Lancaster

Pennsylvania

Scranton

Pennsylvania

Erie

Pennsylvania

Flint

Michigan

Kalamazoo

Michigan

Syracuse

New York

Riverside

California

New Haven

Connecticut

Bridgeport

Connecticut

Fayetteville

Arkansas

Knoxville

Tennessee

Chattanooga

Tennessee

Lexington

Kentucky

Youngstown

Ohio

Trenton

New Jersey

Newark

New Jersey

Melbourne

Florida

Fremont

California

Newport News

Virginia

Marietta

Georgia

Everett

Washington

Palmdale

California

Chandler

Arizona

Sunnyvale

California

Torrance

California

Cape Canaveral

Florida

From CAD File to Shipped Parts

Three steps. No runaround. You always know where your project stands.

Step 1

Upload Your CAD File

Send your STEP or IGES file. Select material, quantity, and finish. We review for manufacturability and respond fast.

Step 2

We Machine & Inspect

Your parts run on our CNC mills and lathes. Every order gets CMM inspection. We verify every critical dimension before shipping.

Step 3

Ship with Full Documentation

Parts ship with dimensional inspection reports, material certs, and full traceability. Everything your quality team needs.

Upload CAD for Instant Quote

Common Questions About
Transmission Parts Machining

We machine aluminum 6061 and 380 die cast, 4140 and 4340 steel, ductile iron, and powdered metal for transmission components.
We hold ±0.001" on general features and ±0.0001" on gear bore and journal fits. CMM inspection on every order.
Most transmission component prototypes ship in 5 to 10 business days. Complex multi-surface housings may take longer.
Yes. We machine aluminum and steel transmission valve bodies with precise spool bore diameters and port locations.
Upload your STEP at rivcut.com/quote or email hello@rivcut.com.

Get Your Transmission Parts
Parts Right

Send us your files. We'll review them for free and get you an honest quote within 24 hours. No pressure. No games.

No minimums · Prototypes welcome · NDA ready · Ships anywhere in the US