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Trix HO Scale Coupler Conversions

The perfect solution for all of your coupler woes. Thanks to our extensive list of HO Scale coupler conversions, it's easier than ever to fit Kadee® Couplers onto your locomotives and rolling stock. Our conversions typically require the least modification to your model, and the How-To Instructions and diagrams make fitting your new couplers a breeze. Remember to always check your coupler heights with our #206 Coupler Height Gauge. We've done the hard work for you, so find the perfect coupler in the list below.*

  Whisker® Metal Coupler Standard Coupler Other Coupler Options

2-8-2 USRA Mikado

#178 Pilot

#33 Pilot

#17 Tender

#18 Tender
 

4-8-8-4 Big Boy
 

#18
 

Locomotives

Locomotives Conversion
 

#17
 

800 Years of Rostock CE 4 Class 412-812 Class 01 4-6-2 Class 01.5 4-6-2 Locomotive with Sound Class 01.5 Express Locomotive with Coal Tender Class 01.5 Express Locomotive with Oil Tender Class 041 2-8-2 Locomotive with Sound Class 043 2-10-0 - Class 043 Locomotive Class 050 2-10-0 Locomotive with Cabin (Doghouse Tender), Class 08 4-8-2 Locomotive with Powered Coal Tender, Sound & Class 1 Locomotive Class 10 4-6-2 Oil Tender w/Sound & Class 103.1 Locomotive Class 1189 Crocodile - Sound and Class 130 TB Locomotive Class 141 Class 141 S-Bahn Locomotive - Class 144 - Class 150 Locomotive -- Ger Class 150 Z 2-10-0 Locomotive with Box-Style Tender, Sound & Class 17 Locomotive Class 18 Locomotive with Sound Class 18.1 4-6-2 Locomotive - - Class 182 Locomotive with Class 183 Railcar Class 189 - Class 193 Locomotive with Class 194 - Sound and DCC -- Class 2070 "Hector" Class 23 2-6-2 Locomotive Class 23.0 2-6-2 Locomotive Class 254 - Sound and DCC -- Class 290 Diesel Locomotive with Anim Class 38.10-40 0-10-0 & 2 T30 Tub Tender Class 38.10-40 4-6-0 Locomotive with Class 39 2-8-2 with 2'2'T34 Tender - Class 41 2-8-2 Standard Tender & Witte Deflectors - Class 42 2-10-0 Locomotive with Tub-Style Tender - Stand Class 42 2-10-0 Tub-Style Tender - Stand Class 42 2-10-0 Tub-Style Tender - Stand Class 42 2-10-0 with Tub-Style Tender - Class 42.90 2-10-0 Locomotive with Tub Tender & Wagner Deflecters- Sound & Class 420 Passenger S-Bahn Class 420 S Bahn Railcar Train Class 421 - Sound and DCC -- Class 44 2-10-0 Locomotive with Coal Tender Class 44 2-10-0 with Oil Tender - Standard Class 44 Locomotive Class 45 2-10-2 Locmotive - Standard Class 456 Powered Rail Car -- Class 460 Locomotive with Class 465 - Class 50 2-10-0 Locomotive with Cabin Tender, Sound & Class 50 2-10-0 Locomotive with Witte Deflector & Coal Tender - Stand Class 55 0-8-0 w/Henschel Rotary Snowplow Class 56 Locomotive Class 56.2-8 2-8-0 - Class 56.2-8 2-8-0 Freight Locomotive Class 5600 2-10-0 w/Tub-Style Tender - Sound & Class 57.5 0-10-0 & 2 2 T21,8 Tender Class 58.10-21 2-10-0 Locomotive with Class 64 4-6-0 Locomotive with Tender - Standard Class 66 JT42CWR Diesel - Sound and Class 75.4 2-6-2T Locomotive Class 77 JT42CWRM Diesel - Sound and Class 92 0-8-0T Locomotive with Sound Class 92 Locomotive Class 94 0-10-0T Locomotive with Sound Class 94.5 0-10-0T Class 94.5-18 0-10-0 Tank Engine - Class 95 2-10-0T Coal Version Class 95 2-10-0T Oil Version Class 95.0 Locomotive with Oil Firing Class 96 0-8-8-0T - Sound & DCC Class 96.0 0-8-8-0T Class Ae 6/6 Locomotive - Class Be 4/6 Electric Class Be 6/8 II Crocodile Locomotive Class BR 15 (S 2/6) 4-4-4 Locomotive with Class C 5/6 2-10-0 Elephant Locomotive with Oil Tender, Class De 6/6 Crocodile Locomotive - Era III - Powered Class De 6/6 Seetal Crocodile Locomotive with Class Dm3 Class E 18 42 Locomotive -- Aus Class E 41 Locomotive with Class E 44 Locomotive with Class E 50 Locmotive - Era III -- Class E 70.2 Loco Powered (Lim Class EG 2x2/2 w/Sound & DCC Class EG 507 Electric Class El 12 w/Sound & DCC -- Class EL 18 - Class Ep 3/6 Locomotive -- Royal Class EP5/Cl and Class 52 Loco Class ET 87 Railcar with Sound & Class Fc 2x3/4 Locomotive with Class G 12 2-10-0 Locomotive Class G 5/5 0-10-0 with 2 T21,8 Tenders Class G Locomotive with Tender -- Class P10 Class RAe 4/8 Railcar - Sound Class RCe 2/4 Red Arrow Railcar with Ski Car - Sound and Class Re 4/4 I Loco w/Sound Class Re 4/4 II 420 - Standard Class Re 420 Locomotive with Class Re 620 Locomotive with Class Re 620 Locomotive with Class T44 Diesel - DCC -- Green Cargo Class VT 08.5 Paris-Ruhr TEE Diesel Class VT 11.5 TEE Diesel Rail Car Class VT 75.9 Railcar & VB 140 Trailer Set Class VT 98 Rail Bus Diesel Class 1500 Diesel-Type MaK G 1206 Locomotive -- EMD Class 66 Diesel Locomotive with EMD Type JT42CWR Class 66 Diesel Locomotive with Sound & Era III Class 040D Locomotive -- EST Era III Class 23 Passenger Locomotive with Heavy Freight Locomotive Hollental Starter Set Karlsruhe Commuter Train -- German Fed LINT 41 Class 648.2 Diesel Railcar Locomotive -- TX Logistik (25th Lufthansa Airport Express Train-Only MY NOHAB Locomotive - -- NOHAB Class MV Diesel Locomotive

All Rolling Stock

All Rolling Stock Conversion
 

#17
 

Track Cleaning Car Tank Car "Soil Excavation Stuttgart 21" Container Transport Freight Car Set Hopper Car Set Type Fcs Dump Car Set Wood Transport Stake Car Set Erz IIId Hopper Car Set Hinged Roof Car Set Type Zans Tank Car Carlsberg and Tuborg Container Transport Type Hbbins High-Capacity Sliding Wall Boxcar Low Side Car Set Trix H0 Museum Car for 2021 Type Sggrss 80 Double Container Transport Car

Passenger Cars

Passenger Cars Conversion
 

#17
 

Prussian Class P10 2-8-2 w/31.5 Tender Rheingold Offshoot TEE 16 4-Car Set - Streamlined Class 05 4-6-4 Locomotive with Tender, Sound & Swiss "Crocodile" Class Ce 6/8 III Locomotive with TGV Euroduplex High-Speed Train - TVT Catenary Maintenance Railcar with Type 058 Ardelt Crane with Tender and Tool Car - Type Oot/Ootz 44Erz Ir Ore Hopper w/Load 12-Pack - Type OOtz 41 Erz IIId Hopper with USRA Light 2-8-2 Mikado w/Sound & V200 Diesel Locomotive -- German Vossloh Class G 2000 BB Diesel - Passenger "Bavaria" TEE Express Set w/Sound

Anywhere a NO.5® is listed, the #28, #58 or #118, #119, #120, #158, #148 Whisker® Coupler can be used in its place.

Newer models with factory-installed knuckle couplers are easily converted using our standard head #148 or scale head #158 Whisker® Couplers.
If you need a longer coupler, use the #146 or scale head #156 Whisker® Coupler.

Shallow cast-on gearbox fix: If you have a Kadee® Coupler that is not moving freely back and forth in a shallow cast-on gearbox. This is because some clone knuckle coupler manufacturers started molding shallow cast-on gearboxes on their models to fix the problems with their drooping clone knuckle couplers. The fix is a simple one. You have to file the top of the coupler shank a few strokes with a file, usually just enough to remove the black coloring to make the Kadee coupler function correctly in the non-standard shallow cast-on gearbox.

*Our conversions are based on only one model from a production run; there may be inconsistencies in a model’s production run that require a different coupler or model modifications to achieve the proper coupler height for coupler function.

** Metal Coupler Note: It is not recommended to use a metal coupler directly on a metal surface to avoid the possible electrical crossover or shorting that may cause damage.