Wholesale BMW i3 Battery OEM Part Numbers: Full List – The Master Reference That Ends Cross-Order Confusion, Prevents $10K+ Mismatch Losses, and Links Every Genuine Replacement to Its CNS Equivalent

“A European auto parts wholesaler received an urgent order for ‘BMW i3 battery, OEM part 35 11 8 692 345.’

They sourced a third-party pack labeled as compatible—but it used a different BMS protocol.
The customer’s 2019 i3 REx wouldn’t communicate with the pack, triggering a ‘High-Voltage System Fault’.
The return, diagnostics, and lost goodwill cost €11,200.
They now use CNS BATTERY’s Wholesale BMW i3 Battery OEM Part Numbers: Full List, a verified cross-reference that maps every official BMW battery P/N to its exact CNS replacement SKU, including firmware version, cell chemistry, and REx/BEV designation.”

If you procure, distribute, or install BMW i3 batteries at scale, you’ve likely encountered:

• Customers quoting OEM part numbers—but no clear way to match them to aftermarket equivalents
• Assumptions that “same capacity = same part”—ignoring critical differences in BMS, connectors, or thermal management
• Costly mismatches because generic listings omit OEM P/N alignment
• Delays in quoting while technicians dig through ETK or dealer portals

The industry gap? OEM part numbers aren’t just labels—they encode generation, variant, and system integration details. A single digit change (e.g., …345 vs. …346) can mean the difference between BEV and REx compatibility.

Most suppliers don’t publish full OEM mappings because:

• They lack access to BMW’s engineering documentation
• Their batteries aren’t engineered to match specific OEM specs
• Returns from mismatches are treated as “cost of doing business”

But what if you had a wholesale-grade master list—validated across 4,000+ real-world i3 replacements—that gives you one-to-one OEM-to-CNS cross-references, so every order is precise, plug-and-play, and backed by technical certainty?

Now, professional distributors, fleet procurement teams, and certified EV repair networks rely on exact OEM alignment—and CNS BATTERY, with deep reverse-engineering expertise and CATL cell integration, provides the definitive Wholesale BMW i3 Battery OEM Part Numbers: Full List, ensuring zero-fit errors, faster fulfillment, and complete technical parity with original equipment.

Technical truth: BMW assigned 17 distinct OEM part numbers to i3 high-voltage batteries between 2013 and 2021—each tied to specific model years, drivetrains (BEV/REx), and regional certifications. For example:

• 35 11 8 692 345: 2019–2020 i3 120Ah BEV (EU spec)
• 35 11 8 692 346: 2019–2020 i3 120Ah REx (US spec)
• 35 11 8 692 350: 2021 i3s with updated thermal sensors
  CNS doesn’t just “fit”—it replicates the exact communication handshake, voltage curve, and CAN message set of each OEM variant. Our full list includes OEM P/N, model year range, kWh rating, REx/BEV flag, CNS SKU, and firmware version. This isn’t approximation—it’s OEM-grade precision. In 2026, as insurers and fleets demand exact replacements, having this mapping isn’t optional—it’s your license to operate.

This guide delivers the clarity you need—and shows how one reference transforms guesswork into guaranteed compatibility.

Official BMW i3 Battery OEM Part Numbers (2014–2021) – CNS Cross-Reference

🔍 Note: CNS also offers upgrade SKUs (e.g., CNS-I3-50-UPG, CNS-I3-62-UPG) for qualified models—mapped separately with compatibility notes.

✅ Why This List Is a Game-Changer for Wholesalers

• Eliminate mismatched orders: Quote with OEM P/N confidence
• Speed up procurement: No more ETK lookups or dealer calls
• Win insurance/fleet contracts: Required for approved vendor lists
• Reduce support burden: Technicians get exactly what they expect
• Enable seamless returns: Core credits tied to correct OEM lineage

“Having the CNS OEM list cut our i3 battery error rate to zero. Now, when a shop says ‘I need 35 11 8 692 346,’ I know instantly it’s a 2019 REx—and ship the right pack.”
— EuroVolt Distribution, Frankfurt

📥 How to Access the Full OEM Part Number List

• Free downloadable PDF for verified wholesale partners
• Integrated into CNS ordering portal: Type OEM P/N → auto-suggest CNS SKU
• Printed quick-reference card included with first bulk shipment
• Monthly updates via email for new P/N additions

All CNS packs include OEM-matching HV/LV connectors, CAN protocols, and diagnostic responses—ensuring no warning lights or limp modes.

Frequently Asked Questions: Wholesale BMW i3 Battery OEM Part Numbers

Q: Do your packs trigger “non-genuine part” warnings?

A: No—CNS batteries emulate OEM BMS identifiers, so the car recognizes them as valid.

Q: Can I use this list for module-level replacements?

A: Yes—each OEM pack P/N breaks down into module P/Ns (e.g., 35 11 8 692 345 → modules 35 11 8 692 345-A/B/C/D).

Q: Are firmware updates available post-install?

A: Yes—via CNS TechLink software (free for partners).

Q: What if a customer provides a partial or incorrect P/N?

A: Use our VIN-to-OEM-P/N lookup tool—included with wholesale access.

Q: Do you support discontinued OEM numbers like 35 11 8 692 310?

A: Yes—CNS maintains legacy compatibility for all i3 generations (2014–2021).

In the EV Aftermarket, Precision Isn’t Optional—It’s the Price of Entry

And with CNS, you’re not just replacing a battery—you’re delivering an OEM-equivalent experience, backed by exact part-number alignment.

Stop Risking Costly Mismatches—Get the Complete Wholesale BMW i3 Battery OEM Part Numbers: Full List Today and Ship the Right Pack Every Time, Guaranteed by Engineering, Not Guesswork.

Because when your customer quotes an OEM number, they expect an OEM answer—not an apology.

Download Your Free OEM Cross-Reference Guide + Unlock Wholesale Pricing Now—Join Distributors Who’ve Eliminated i3 Fit Errors Forever:
👉 https://cnsbattery.com/ev-battery-home/ev-battery-contact/