Automotive Parts We Machine
We machine precision machined parts for automotive applications — engine brackets, suspension components, brake caliper mounts, and EV battery housings. Common materials include 6061 aluminum, 7075 aluminum, 4140 steel, 304 stainless, and titanium.
Engine Brackets & Mounts
Precision machined to your specifications with full dimensional inspection and material certification.
Suspension Components
Precision machined to your specifications with full dimensional inspection and material certification.
Brake Caliper Brackets
Precision machined to your specifications with full dimensional inspection and material certification.
EV Battery Housings
Precision machined to your specifications with full dimensional inspection and material certification.
Intake Manifolds
Precision machined to your specifications with full dimensional inspection and material certification.
Why Napa Automotive Companies Choose RivCut
Ships from Union City, CA
We machine and ship from our shop in Union City, California. Napa companies get fast delivery with ground shipping, and we ship nationwide for teams anywhere in the US.
Instant AI-Powered Pricing
Upload your STEP or IGES file and get a real price in seconds. No waiting for a human to review your file. If your part is complex, we follow up within hours with a confirmed quote.
Tight Tolerances, Every Part
We hold ±0.001" on standard features and ±0.0005" on critical dimensions. Every part gets CMM inspection with a dimensional report included.
Full Documentation
Material certs, dimensional inspection reports, and process records ship with every order. We provide the documentation your quality team needs for incoming inspection and traceability.
3 Steps to Precision Parts
Upload & Quote
Send your STEP or IGES file. Pick material, quantity, and finish. Get an instant AI price or a confirmed quote within hours.
We Machine & Inspect
Your parts run on our CNC mills and lathes in Union City, CA. Every order gets CMM inspection and full dimensional verification.
Ship with Full Docs
Parts ship with material certs, inspection reports, and all required documentation. We ship to Napa and anywhere in the US.
Ready to Order Automotive CNC Parts?
Upload your CAD file for instant pricing. We machine and ship from Union City, CA to Napa and across the entire US.
No minimum order · STEP, IGES, DXF accepted · Free DFM review