The Nissan Diesel U31 is a series of buses produced by Nissan Diesel in the 1980s and 1990s.

The U31RCN is produced in the 1990s, and succeeded the older U31SCN.

Trans-Island Bus Services/City Shuttle Service/SMRT Buses

TIBS (now SMRT) had purchased and operated a total of 50 Nissan Diesel U31RCN buses.

In 1992, TIBS made a purchase of 50 Nissan Diesel U31RCN buses. 26 of the buses were delivered with air-conditioning, while the remaining 24 without. These buses were built in Japan, and received the "R15/5E" bodywork by Fuji Heavy Industries, similar to the earlier U31SCN buses acquired by TIBS. Built to Japanese specifications, they were fitted with sliding doors for the exit (used as an entrance in Japan).

16 air-conditioned buses received the 'TIB' prefix and was allocated to services under TIBS, while the remaining buses received the 'CSS' prefix and was allocated to services under CSS. All of the non air-conditioned buses were eventually converted to fully air-conditioned. When CSS ceased operations, all 34 buses were re-allocated to SMRT, and some of them were re-registered with the 'TIB' prefix.

All buses were retired by 2012 at the end of their lifespan.

Specification Table

Original air-conditioned Converted air-conditioned
Registration no. CSS178K - CSS187J
TIB362M - TIB377X
CSS188G - CSS211Y
TIB1248D - TIB1256E (formerly CSS197E, CSS199A, CSS201B, CSS202Z, CSS206M, CSS208H - CSS211Y)
Vehicle bodywork Fuji Heavy Industries R15/5E
Quantity 26 24
50 (Total)
Year 1992
Passenger capacity Seating: 45
Standing: 31
Total: 76
Engine model Nissan PE6H
Engine capacity 11670 cc
Transmission model ZF Ecomat I 4HP 500
Power/torque 226 hp (169 kW) @ 2200 rpm / 814 Nm @ 1300 rpm
Air-con model Fuji
EDS model LAWO
EDS controller model LAWO 801/4


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