K-27 Matrix

This matrix is designed to identify some of the key differences between the many models available. Please note the following:

  • This matrix contains some key differences between road numbers and versions. There are additional details not listed here.
  • When ordering, make sure to add the '-S' for Sound-Equipped models!
  • All models come painted in black/graphite unless otherwise mentioned.


SOLD OUT! items are sold out at the factory. Check with your local dealer for product availability.
2ND RELEASE! items are now available for purchase.

Inboard Piston Valve
Road Number Part Number Herald Additional Details
454 B310121 Flying Grande
SOLD OUT!		 Switcher Pilot/Tender Steps, Backup Light
456 B310122 Moffat Tunnel*
SOLD OUT!		 Switcher Pilot/Tender Steps, Backup Light
458 B310123 Moffat Tunnel* Road Pilot
2ND RELEASE! sound only
461 B310125 RGS Sunrise
SOLD OUT!		 Road Pilot
461 B310124 Flying Grande
SOLD OUT!		 Road Pilot
Outboard Piston Valve
Road Number Part Number Herald Additional Details
452 B310101 Flying Grande
 Road Pilot, Large Backup Light
2ND RELEASE! sound only
453 B310102 Flying Grande
 Switcher Pilot/Tender Steps, Backup Light, Square-corner Tender, Doghouse
2ND RELEASE! sound only
455 B310103 Royal Gorge**
SOLD OUT!		 Road Pilot, Green Boiler Jacket
459 B310104 Moffat Tunnel
SOLD OUT!		 Road Pilot, Backup Light
462 B310105 Royal Gorge** Road Pilot, Green Boiler Jacket, Aluminum Bronze Lettering
2ND RELEASE! sound only
463 B310106 Flying Grande
 Road Pilot, Backup Light
2ND RELEASE! sound only
464 B310107 Flying Grande
 Snowplow, Backup Light, Square-corner Tender 2ND RELEASE! sound only
Painted, Unlettered B310100

Road Pilot, Backup Light
SOLD OUT!
Post Wreck
Road Number Part Number Herald Additional Details
455 Post Wreck B310131 RGS Sunrise
SOLD OUT!		 Snowplow, Post Wreck Tender, details unique to the Post Wreck
455 Post Wreck B310131W RGS Sunrise
SOLD OUT!		 Snowplow, Weathered, Post Wreck Tender, details unique to the Post Wreck


*Moffat Tunnel Herald - late 1930's

**Royal Gorge Herald - Pre-1936