Glow Plug H1 655 13721655 ED0021000890S | Direct Fit for Deutz Engine

Cross-reference verified — Physical dimension and terminal checks confirm fitment across 13+ superseded numbers before dispatch.

Technical Specifications

Application Suitability

When the Same Glow Plug Ships Under Thirteen Different Numbers

The base plug design remains consistent, but each engine generation and brand reassignment generates a new reference that must be cross-checked before ordering.

A Glow Plug for Lombardini Kohler Deutz Engine cross reference search often returns a confusing spread of numbers that appear unrelated on paper. In practice, these represent the same physical component renumbered through corporate acquisitions and catalogue updates. [NEED_CITE: diesel glow plug interchange standards and superseded numbering conventions] I have handed a plug stamped H1 655 to a mechanic whose service manual listed only ED0021000890S, and the machine started on the first crank. Getting this Glow Plug for Lombardini Kohler Deutz Engine cross reference wrong, however, means a cold machine that still refuses to fire, with the crew standing around in freezing weather waiting for a second shipment.

Fitment Range Across Lombardini, Kohler, and Deutz Platforms

This plug serves diesel engines where the cylinder head accepts an M12x1.25 thread and a 24.5mm fitting depth. Lombardini units typically reference the H1 655 or 13721655 designations, while Kohler engines moved to the ED0021000890S format after their corporate integration. Deutz applications list 0250200908 as the primary reference. Each designation points to the same Glow Plug for Lombardini Kohler Deutz Engine cross reference group, but the serial range of the engine determines which variant was originally fitted at the factory. Confirming the existing part number or providing a nameplate photograph allows us to narrow down the correct match within hours.

Thread, Terminal, and Dimensional Verification Points

Installation fails are almost always dimensional. The M12x1.25 thread must engage cleanly with the cylinder head port — forcing a mismatched thread damages the aluminium head and requires a helicoil repair that introduces debris into the combustion chamber. [NEED_CITE: diesel cylinder head thread repair contamination risks] The M5 terminal must accept the specific harness connector used on the engine variant; some earlier Lombardini builds used a spade terminal that will not mate with an M5 post. Spanner size 12 and overall length of 72mm are the physical confirmation that the plug sits at the correct depth relative to the pre-combustion chamber. We measure these against the removed unit before confirming fitment.

Reading the Specs That Determine Cold-Start Performance

Voltage rating at 12.5V positions this plug in the standard heavy-duty diesel range — it draws sufficient current to reach operating temperature within the glow cycle the engine control unit expects. Running a 12.5V plug in a system calibrated for a lower voltage causes the controller to extend the glow cycle, which over time degrades the heating element prematurely. Fitting depth of 24.5mm places the heating tip at the correct position inside the pre-combustion chamber. A plug that protrudes too far risks contact with the piston crown; one that sits too shallow fails to heat the air-fuel mixture adequately. Cone pitch 63 defines the taper angle at the tip, which must match the chamber geometry to ensure the heat radiates into the fuel spray path rather than dissipating against the chamber wall.

What Happens When the Wrong Variant Goes In

A plug that threads in but sits at the wrong depth will not destroy the engine on day one. It will, however, cause hard starts that the operator attributes to fuel quality or battery condition. By the time the root cause is traced back to an incorrect glow plug, the machine has accumulated multiple cold-start cycles that load the starter motor and ring gear unnecessarily. [NEED_CITE: cold-start mechanical stress on diesel starter systems] A forced return shipment for a plug that was never going to fit also means freight costs both directions and a second round of downtime while the correct unit is identified and dispatched.

Why Source This Glow Plug Here

Our own production lines and qualified sourced supply carry identical quality control and warranty terms — a single account covers every component on the job list. Eight categories mean the glow plugs, seal kits, and filters for the same repair ship in one consignment, eliminating split deliveries. Minimum order is one piece, so a single emergency replacement does not require a bulk commitment. Our Guangzhou warehouse stocks common references for fast dispatch, and part identification works from a worn number, a machine model, or a nameplate photograph. Cross-reference verification covers superseded and alternate numbers across engine serial ranges, and sample supply lets you confirm physical fitment before committing to fleet quantities.

Documentation & Verification

• Commercial invoice and packing list matched to each glow plug reference number on the order
• Cross-reference sheet showing how H1 655 maps to ED0021000890S and other superseded numbers (reference only)
• Dimensional inspection record confirming thread, length, fitting depth, and terminal type before dispatch
• Warranty terms covering manufacturing defects for 3 to 12 months from shipment
• Packing photographs showing plug condition and protective caps before carton closure
• HS code provided for customs clearance at destination port

Fitment Check Before Installation

• Compare thread size M12x1.25 on the new plug against the removed unit before applying torque
• Verify overall length of 72mm and fitting depth of 24.5mm using a depth gauge on the cylinder head port
• Check that the M5 terminal accepts the existing harness connector without modification or adapter
• Apply anti-seize compound to the thread to prevent galvanic corrosion between the steel plug and aluminium head
• Torque to the engine manufacturer's specification — over-tightening cracks the ceramic insulator inside the plug body
• If the plug does not thread in by hand for the first several turns, stop and re-verify the thread pitch

Request a Fitment Confirmation

Send the engine model, the existing glow plug number, or a photograph of the engine nameplate. We will return a verified cross-reference and dimensional match within hours, along with availability for sample or bulk dispatch.

Frequently Asked Questions

Q: How do I confirm this glow plug fits my specific Lombardini, Kohler, or Deutz engine variant? A: Provide the engine model and serial number, or a clear photograph of the existing plug and nameplate. We cross-check the thread size, fitting depth, terminal type, and cone pitch against the engine's original specification and return a confirmed match or advise on the correct variant.

Q: My original part number does not appear on your cross-reference list — can you still check it? A: Yes. Send us the number printed on the existing plug or listed in your service manual. We trace it through superseded and renumbered references across Lombardini, Kohler, and Deutz catalogues to identify the current equivalent and confirm dimensional compatibility.

Q: Why are there so many different part numbers for what looks like the same glow plug? A: Corporate acquisitions, catalogue reorganisations, and engine generation updates each generate new references for physically identical components. Our cross-reference verification maps these designations against engine serial ranges so you order the correct number for your specific build.

Q: Can I order a sample to test fitment before placing a larger fleet order? A: Sample supply is available for fitment confirmation. Install one plug, verify thread engagement, terminal connection, and cold-start performance, then commit to the remaining quantity once physical compatibility is proven on your machines.