# Automotive & New Energy Vehicle Parts — CNC Machined to Drawing

> Sinbo Precision (sinbo-machining.com) machines 37 automotive & NEV parts to customer drawing in Dongguan, China — quotation within 48 hours, first prototypes in 7–15 days, from 1 piece. IATF 16949 & ISO 9001:2015 certified.

IATF 16949-certified production with PPAP Level 3 and EN 10204 3.1 material certificates as standard deliverables. Sinbo machines automotive hardware in brass, 303/304/416 stainless, 42CrMo4 and 16MnCr5, and supports NEV programs with copper terminals, aluminum battery hardware and e-motor shafts. Second-source transfers start from your existing drawing and CPP.

## 37 Automotive & New Energy Vehicle Parts We Machine

- **ABS wheel-speed sensor housing** — brass or PA66-insert aluminum, overmold-ready geometry.
- **Pressure sensor housing** — brass/316, oil and air media, ±0.01 mm port thread.
- **Position sensor housing** — aluminum, sensor-bore concentricity ≤0.02 mm.
- **Coolant temperature sensor boss** — brass, NPT/M10/M12 options.
- **Oxygen sensor bung** — 316/304 stainless, M18×1.5, weld-ready chamfer.
- **NOx sensor fitting** — 316 stainless, thread + weld collar.
- **Injector valve components** — high-pressure fitting bodies in 316, orifice ±0.02 mm.
- **High-pressure fuel fitting** — 24° cone, pressure-deburred internal edges.
- **Banjo bolt, brake** — 10.9 steel or 316, single/double drilled feed.
- **Brake pipe fitting** — M10×1 steel or brass, ISO 4038-style.
- **Clutch slave cylinder fitting** — steel, bleed nipple seat included.
- **Turbo oil drain fitting** — 316 stainless, flange face + hose barb.
- **Turbo actuator link** — ground rod end, thread + eye.
- **Transmission solenoid spool** — ground, ±0.002 mm, ATF-compatible finish.
- **Detent pin** — hardened, spring-groove ground.
- **Shift fork pin** — case-hardened 16MnCr5.
- **Gearbox ground shaft** — 42CrMo4, journals ground after nitriding.
- **Wheel bearing spacer** — ground both faces, height ±0.01 mm.
- **Suspension bushing sleeve** — steel, vulcanization-ready knurled OD.
- **Shock absorber eye bushing** — turned + ground, press-fit OD.
- **Battery pack standoff** — aluminum 6061, insulating washer face option.
- **Machined copper battery terminal** — C11000/T2 copper, tin or nickel plated.
- **Cold-headed battery contact** — copper alloy, head forms to print, plated.
- **Charging connector terminal** — copper alloy, silver/tin plating per spec.
- **Charging station coolant fitting** — brass, leak-tested.
- **Heater cartridge sleeve** — aluminum, bore ±0.02 mm.
- **E-motor ground shaft** — bearing seats ground, keyway + spline options.
- **Motor end cap, machined** — aluminum, bearing bore + sensor features.
- **Cold plate fitting** — brass/aluminum, O-ring face seal.
- **Thermal management fitting** — 316/brass, compact geometry.
- **Wire harness connector pin** — phosphor bronze/brass, plated, strip or loose.
- **Cold-headed terminal pin** — head forms at 60–180 T volume.
- **Relay core piece** — magnetic soft iron, annealed, plated.
- **Seat adjuster shaft** — ground, e-coated.
- **Seat belt retractor pin** — hardened + ground, rupture-tested lot.
- **Milled sensor bracket** — 6061-T6, tapped + datum-controlled.
- **CNC wheel hub spacer** — forged or bar 6061/7075.

## Typical Materials & Tolerances

| Parameter | Value |
|---|---|
| Metals | Stainless 303/304/316/316L/416/17-4 PH · brass CW617N, DZR CW602N, CuZn39Pb3 · aluminum 6061/7075/6082 · steel 1018/1045/42CrMo4/16MnCr5 |
| Plastics | PEEK · PTFE · POM (Delrin) · nylon · PVDF · polycarbonate |
| Tolerances | ±0.005 mm on critical diameters · DIN ISO 2768-mK general · ground features ±0.002 mm |
| Surface | Ra 0.8 standard machined finish · Ra 0.4 / Ra 0.2 ground · Ra 0.1 lapped |
| Finishes | nickel / zinc / hard chrome / black oxide / anodizing / PVD via audited partners |
| Documentation | EN 10204 3.1 material certificates · FAI · PPAP Level 3 (automotive) · full dimensional report |
| Order range | 1-piece prototypes · batch 100–20,000+ · 2.6 million parts/month capacity |
| Lead time | quotation within 48 hours · first prototypes 7–15 days |

## Related Pages

- [Automotive tier suppliers case study](https://www.sinbo-machining.com/case/kr-automotive-tier/)
- [EV solenoid valve case study](https://www.sinbo-machining.com/case/ev-solenoid-valve/)
- [HVDC contact plate](https://www.sinbo-machining.com/case/ev-hvdc-contact-plate/)
- [Automotive second source](https://www.sinbo-machining.com/case/automotive-second-source/)

**Request a quote:** send your drawing to leo.pan@sinbo-machining.com — quotation within 48 hours, no minimum order for prototypes.

Last updated: 2026-09-27