Series-Specific Spark Plug Kit – Fits Yanmar 3TNV70 & John Deere XUV

Variant-Level Fitment Verified — Cross-reference BKR6EGP (cross-reference only) and MIU12783 (reference only) mapped to John Deere XUV 825/835/845 series with serial range coverage.

Technical Specifications

Application Suitability

Why the Same Part Number Ships in Multiple Variants

Wire length and boot orientation differ across XUV generations even when the base plug number remains identical.

A buyer holding a worn plug with a partially legible number faces a common problem: the electrode specification points to BKR6EGP, but the wire set that fits an XUV 825i will not reach the coil pack on an XUV 835M. [NEED_CITE: ignition wire routing differences across UTV engine generations] I have seen orders placed on the plug number alone arrive with wires too short for the S4 four-seat layout, where the engine sits further back in the chassis. The machine goes back down while a second set ships. Verifying the full machine model designation and engine serial prefix before ordering eliminates this mismatch. A Spark Plug and Wire Kit for Yanmar 3TNV70 / fitment cross reference must account for these physical routing differences, not just the electrode specification.

Machine Model and Serial Range Coverage

The XUV 825, 835, and 845 series share the Yanmar 3TNV70 engine family, but production revisions introduced changes to the ignition harness routing and coil pack position. Early 825i units may carry a different wire length than 825M units produced later. Confirming your engine serial prefix narrows the correct variant from five cross-reference numbers down to one.

Wire Set Variant Differences Within the Same Base Number

The plug itself — nickel-alloy electrode, 0.7 mm gap — remains constant across all listed XUV models. The variation lies in the wire set: length, boot angle, and connector type change depending on whether the engine bay accommodates a two-seat or S4 four-seat configuration. Ordering by plug number alone ignores these differences. The Spark Plug and Wire Kit for Yanmar 3TNV70 / fitment cross reference listing here consolidates references MIU12783, MIA11722, MIA11723, and MIA11724 so buyers can identify which variant matches their machine. [NEED_CITE: UTV ignition wire set variant identification by machine serial range]

Superseded and Alternate Cross-Reference Numbers

Part numbers in the Yanmar and John Deere systems have been superseded across production years. A number from a 2015 service manual may no longer appear in current catalogs. This listing consolidates BKR6EGP, MIU12783, MIA11722, MIA11723, and MIA11724 into a single verified cross-reference table. If your old number does not appear here, provide it for manual verification — copied tables between sellers frequently carry forward errors that lead to incorrect fitment.

Reading Spark Plug and Ignition Parameters for UTV Service

The 0.7 mm gap tolerance suits the 3TNV70 combustion chamber geometry; widening beyond specification under vibration causes misfire under load rather than at idle. Nickel-alloy electrodes handle the thermal cycling typical of off-road UTV operation — agricultural dust, quarry haul routes, and coastal salt exposure all accelerate electrode wear compared to paved-road use. The 8.5 mm wire diameter with silicone insulation and ≤5 kΩ/m resistance meets SAE J1128 requirements for suppression of electromagnetic interference that can disrupt ECU signals. [NEED_CITE: SAE J1128 ignition cable suppression requirements for off-road vehicles] The IP67 boot seal rating prevents moisture ingress at the coil pack connection, which is the most common failure point in muddy or high-humidity operating environments.

The Hidden Cost of Ordering on Plug Number Alone

A plug that threads in correctly but paired with wires that do not reach means the machine cannot run. The return shipment, the second order, and the continued downtime compound into a cost far beyond the part itself. In one case I supported, a fleet workshop ordered for a mixed group of XUV 825i and 835M units using a single reference number. The wires fit the 825i machines but were too short for the 835M coil pack position. [NEED_CITE: cost of unplanned downtime in mixed-fleet UTV maintenance operations] Those machines sat idle for the duration of a replacement shipment. A Spark Plug and Wire Kit for Yanmar 3TNV70 / fitment cross reference verified at the variant level prevents this outcome.

Why Source This Spark Plug and Wire Kit Here

Own production on selected lines and qualified sourced supply operate under a single account with one warranty — this kit ships as one consignment with matched plugs and wires. Identification works from a part number, machine model, or a photograph of the worn nameplate when the number is illegible. Cross-reference verification covers all five listed OEM numbers including superseded references, so buyers working from older service manuals still get accurate matches. A sample kit is available for physical fitment trial before committing to a fleet-wide bulk order. Minimum order is one piece, so a single emergency replacement does not require waiting to accumulate quantity. The technical team confirms compatibility at the variant level — wire length, boot orientation, and connector pattern — before dispatch.

Documentation & Verification

• Commercial invoice and packing list listing each cross-reference number for customs clearance
• Compatibility and cross-reference sheet mapping BKR6EGP to all four alternate numbers (reference only)
• Dimensional check record confirming wire length and boot connector type against machine variant
• 6-month warranty terms covering manufacturing defects in electrode and wire assembly
• Packing photographs showing kit contents before dispatch for buyer verification

Fitment Check Before Installation

• Measure wire length from plug well to coil pack connector against old set before removing original wires
• Confirm boot orientation and angle match the coil pack layout on your specific XUV variant
• Check thread reach and hex size of new plug against cylinder head specification
• Verify IP67 boot seal seats fully into coil pack connector without gap or pinch
• If wire length or connector pattern does not match, halt installation and request cross-reference re-check
• Torque spark plug to manufacturer specification to avoid thread damage in aluminum head

Requesting a Fitment Verification

Provide your full machine model designation — including the S4 suffix if applicable — along with the engine serial number prefix found on the nameplate. If the nameplate is worn or painted over, send a photograph of the old plug and wire set with a ruler for scale. This allows dimensional confirmation of wire length and boot type before any order is processed. For mixed fleets, list each machine model separately so the correct variant is assigned per unit.

Frequently Asked Questions

Q: How do I confirm this kit fits my specific XUV model variant? A: Provide the full machine model designation and the engine serial prefix from your nameplate. The XUV 825, 835, and 845 series have variant differences in wire length and boot orientation even when the base plug number is the same. We cross-reference your serial range against the five listed numbers to confirm the exact match before processing your order.

Q: Are there different wire lengths under the same plug number? A: Yes. The BKR6EGP plug is consistent, but wire length and boot angle vary between two-seat and S4 four-seat configurations, and between production years within the same model. Ordering by plug number alone risks receiving wires that do not reach the coil pack. Always verify against your specific machine serial number.

Q: My old part number does not match any listed — can you cross-reference it? A: Provide your number along with the machine model. Part numbers have been superseded across Yanmar and John Deere catalog revisions, and cross-reference tables copied between sellers often carry errors. We manually verify your number against our reference database and confirm compatibility before quoting.

Q: I only have the machine model, no readable part number — is that enough? A: Yes. Send the machine model and a photograph of the engine nameplate or the old wire set if accessible. The machine model and serial prefix are sufficient to identify the correct variant from our cross-reference list. We can also work from a photograph showing the boot connector type and approximate wire routing path.

Q: Can I order a sample to test fitment before placing a bulk order? A: Yes. A single sample kit is available at one-piece minimum for physical fitment confirmation. Install the sample on one machine in your fleet, verify wire length, boot orientation, and connector seating. Once confirmed, the bulk order uses the same verified variant for all matching units.