| Operator
|
Route
|
Year
|
Date
|
Service changes
|
 Known as prior to 1 November 2001
|
Boon Lay ↺ Jurong West Ave 5
|
1991
|
19 May
|
Introduced between Boon Lay Int and Jurong West Ave 5 (Loop).
|
| 1992
|
29 March
|
Amended to ply Pioneer Rd Nth, skipping Jurong West St 71.
|
| 1994
|
TBC
|
Last bus extended to 0025 hrs daily.
|
| 25 December
|
Amended to ply Jurong West St 75 and Jurong West St 81, skipping Jurong West St 72.
|
| 1996
|
28 July
|
Amended to ply Jurong West St 64, skipping Jln Boon Lay and Upp Jurong Rd.
|
| First bus brought forward to 0555 hrs daily.
|
243Boon Lay → Jurong West St 64 ↺ Jurong West Ave 5 243Boon Lay → Jurong West St 62 ↻ Jurong West Ave 5
|
1999
|
TBC
|
Amended to ply Jurong West St 61 and Jurong West St 62 and converted to a bi-directional feeder service with green and white plates.
|
| 2006
|
18 June
|
Amended to the relocated Boon Lay Int (Temporary).
|
| 2008
|
TBC
|
Last bus extended to 0030 hrs daily.
|
| 15 June
|
Serves a new pair of bus stops outside Blk 670A and Blk 678D along Jurong West St 64.
|
| 2009
|
27 December
|
Amended to the relocated Boon Lay Int (Integrated Transport Hub).
|
243GBoon Lay → Jurong West St 64 ↺ Jurong West Ave 5 243WBoon Lay → Jurong West St 62 ↻ Jurong West Ave 5
|
2012
|
25 June
|
Designated wheelchair-accessible bus service (WAB).
|
| 2013
|
TBC
|
Last bus extended to 0040 hrs daily.
|
 (Current)
|
2024
|
1 September
|
Operations transferred to SMRT Buses.
|
| 2025
|
7 December
|
Amended to ply Jurong West Ave 5, Jurong West St 74 with the partial closure of Jurong West St 75 to facilitate the construction of Gek Poh station on the Jurong Region Line.
|