Ravon Nexia R3 / R4 transmission: is it GM 6T30?

The short answer

The key boundary is simple: industry-supported fitment is not the same thing as manufacturer-confirmed fitment.

That distinction matters before parts selection because “which transmission is in this vehicle?” and “which exact part fits this production version?” are separate questions.

What is supported for the Ravon Nexia R3 1.5?

OEProof evidence item E110 [Industry] supports Ravon Nexia R3 1.5 B15D2 + GM 6T30.

The source is a Russian Drive.ru road test that describes the 1.5 B15D2 powertrain together with the GM 6T30 automatic transmission.

That is useful fitment evidence because it prevents the vehicle name from being paired with an arbitrary six-speed automatic.

But the source remains industry-level. The current research did not locate an OEM application chart that records Nexia R3 + B15D2 + 6T30/MH9 in one manufacturer-controlled row across the full model range.

OEProof therefore does not turn this into a rule that every Nexia R3 of every year uses 6T30.

What is supported for the Ravon R4 1.5?

For the Ravon R4 1.5 B15D2, evidence item E111 [Industry] supports the pairing with 6T30/MH9.

The source is an aftermarket technical reference that explicitly lists B15D2 with a six-speed automatic GM 6T30/MH9.

An additional limit applies: the year span shown by that industry source is not promoted to OEM-confirmed year coverage, because the current research did not locate a separate manufacturer application table confirming that full span.

So the 1.5 B15D2 ↔ 6T30/MH9 relationship can be published with an industry label, but it should not be rewritten as a universal OEM table for every R4.

What does the OEProof controlled fitment table say?

OEProof also maintains a controlled gm_6t_fitment.csv. It is not used as a substitute for an OEM catalogue; it records already-reviewed boundaries for specific OE references.

Both records are CONFIRMED / HIGH inside the project-controlled fitment database. That confirmation applies to the specific OE records and their stated limits; it does not mean that any mention of R3 or R4 automatically identifies the correct service part.

If the question has moved from “which transmission?” to “which 6T30 filter belongs to this vehicle?”, that is a separate Gen1/Gen2 intent: see 24237508 vs 24268086: separating the two 6T30 filter generations.

Why is the model name alone not enough to order a part?

The model name answers only part of the fitment task.

Even when an industry source links a specific engine and vehicle to 6T30, exact part selection can still depend on:

• the installed transmission;
• production generation/design;
• VIN or production date when the part changed by generation;
• the exact OE/service part number and component position.

For T-13, the two filter records make the point clearly: R4 appears in the Gen1 24237508 context, while Nexia R3 appears in the Gen2 24268086 context. This is not an instruction to buy one number from the model name; it is evidence for why the generation check cannot be skipped.

What should be checked before ordering a 6T30 part?

1. Exact vehicle and engine. The supported relationships in this article concern the 1.5 B15D2.
2. The transmission actually installed. Do not convert one vehicle name into a universal transmission code.
3. VIN / production date when the target part is generation-sensitive.
4. Exact OE/service part number and component function, not just a seller title.
5. Evidence level. The R3/R4 → 6T30 links used here are industry-supported, not an OEM application chart.

This keeps “we know the transmission family” separate from “we have proved the exact part fitment.”

What evidence supports the conclusion?

These levels are deliberately kept separate: an industry road test does not become an OEM bulletin simply because the technical pairing looks credible.

Update on R4 / Cobalt and evidence level

The publisher manual used in E627 treats Ravon R4 / Chevrolet Cobalt as one platform context and independently supports 6T30/MH9. In addition, the Chevrolet Cobalt side now has a readable [catalog] 2013 JX69/L2C context carrying RPO MH9. See the Cobalt owner article: which automatic transmission is in a Chevrolet Cobalt. This does not remove the existing limitation on this page: we still do not claim that every Ravon R4 uses 6T30/MH9, because the Cobalt catalog does not cover Uzbek R4 build batches and service-part ordering does not transfer across markets by platform identity.

What we do not claim here

Frequently asked

What transmission is in a Ravon Nexia R3 1.5 B15D2?

Russian industry/road-test evidence supports the Ravon Nexia R3 1.5 B15D2 with GM 6T30. In this research that remains [Industry] evidence, not an OEM application chart.

What transmission is in a Ravon R4 1.5 B15D2?

An industry technical reference supports the Ravon R4 1.5 B15D2 with 6T30/MH9. The year span stated by that source is not upgraded to OEM-confirmed coverage.

Is this officially confirmed by GM or UzAuto?

Not by the source set used for this article. The R3/R4 → 6T30 links are published as industry-supported evidence, not as an OEM application chart.

Can I choose 24237508 or 24268086 from the R3/R4 model name alone?

No. The controlled fitment table separates these filters by Gen1/Gen2 and requires VIN / production-date verification when generation is uncertain.

Do all automatic Nexia R3 and R4 vehicles use 6T30?

The current evidence does not support that blanket statement across every year, market and configuration. This article only publishes the specific supported 1.5 B15D2 relationships.

What should I verify before ordering a 6T30 part?

Verify the exact vehicle and engine, the transmission actually installed, VIN/production date for generation-sensitive parts, and the exact OE/service part number.