Large park-bench bumpers were optional on Australia and Japan-market B310s. As usual, North America required the large bumpers while other countries got a choice, including still-boxy but lighter bumpers and simple full-chrome versions.
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One-piece VS three-piece Bumpers
One-piece bumper bar is fashioned of a single piece of steel. It may or may not have rubber covers over the ends
Three piece bumper consists a larger channel-shaped steel piece, and REQUIRED rubber end-covers. The channel piece is straight with no curved end -- only the rubber curves aroud the side of the car
The JDM/AUS three-piece bumper is a shock-aborsber design which appears to be lifted from the 1975 USA B210 5-mph bumper design (resistant to body damage in low-speed collision).
One-piece bumper: steel stamping, chrome plated
One-piece all-chrome bumper with bolted-on rubber end caps
Front
Worldwide B310 have lights in the front bumper. North American bumpers have no lights.
1-piece bumpers * All Sedan, Coupe (except OPTION) * All Van (VB310) * Not used for North America
3-piece bumpers * All Wagon (WB310) * OPTION Sedan, Coupe Round-eye late 7812- * OPTION Sedan, Coupe Square-eye * All North America
Round-eye 1978-1979 Square-eye 1980-1982 Japan Van (VB310) all round-eye early Sedan, Coupe: round-eye 7711-7909 late Sedan, Coupe: square-eye 7910- Wagon (WB310) round-eye or square-eye came only with 3-piece bumper
One-piece Bumpers
Early bumpers are one-piece, and continued to be used even after other styles were introduced. In Japan, they were used on all B310 except Wagon (WB310). One-piece bumpers were available with or without rubber end-caps and rubber strips.
Plain VS Luxe
Plain | or with fancy rubber junk bolted on
STAY BOLT [STAY-TO-CHASSIS] 2 x M10 62250-H9100 round headlight 62250-H9105 square headlight * look similar, perhaps spacing differs?
STAY FRONT RH For H8500 plain bumper (mounting close to body) 62210-H8500 round headlight cars 62210-H8505 square headlight cars For H8560 luxe bumper (mounting out from body) 62210-H8900 round headlight cars 62210-H8905 square headlight cars
62022-H8500 Plain Bumper
All metal 62022-H8500 all-chrome with no rubber end-caps, in Japan was fitted to VB310 and lower trims of Sedan and Coupe.
Front combination lamps fit into the front bumper
62022-H8500 - all years JDM Van (squareback)
62022-H8500 - Sedan Round Eye + Square Eye (CT, City DX, DX only)
62022-H8500 Coupe DX (round eye), Coupe ES (square eye), Coupe Sport (1980)
Australia VB310 with H85 bumper
62022-H8900 Luxe Round Eye
One-piece GL have angle-cut rubber ends
Round Eye One-piece with rubber-covered ends (GL,GX Coupe & Sedan)
62022-H8560 Luxe Square Eye
From 1979 OCT has added a rubber strip along bumper front top edge
Note: the orange coupe has the Strip removed, but the holes are visible
Overriders
Rubber bumper overriders (not used in Japan)
Misc
Custom: Silver painted metal bumper (old-style STD look). B310 didn't use painted bumpers like B110 standard, but it makes for an interesting appearance.
Custom: Big-bumper model retrofitted with small bumpers. Note the large openings behind the bumpers.
Stays
62671 STAY FRONT RH 62210-H9311 W -7909 62210-H9315 W 7910- 62210-H8500 V, K.DX, S.DX+CT+CITYDX 62210-H8505 K.ES+SPR, S.DX+CT 62210-H8900 (S+K)GL+GX# -7909 62210-H8905 K.GS+GX+RSE,S.GL#+GX 7910- 62671A BOLT [STAY STUD BRACKET] 62250-H9100 (K+S)-7909, V 62250-H9105 (K+2)7910- 08911-14037 STAY NUT
62650A BUMPER-TO-STAY CARRIAGE BOLT 01135-00061 W, (S+K).(A14+A15)# 6 62663-27700 2 OR 4 08911-10637 NUT 62673A BUMPER-TO-END-BRACKET CHROME BOLT 08911-10637 NUT
early cars with rear bumper below plate. Brackets.
H89
62210-H8900 BUMPER STAY RH 62212-H8900 BUMPER STAY LH
Modified with second set of holes to mount closer to the body and about 5mm lower (tilts down slightly)
Three-piece Bumpers
This type of bumper has a channel-section center bar and each end is bolted to it (three pieces).
Regular type mounted with stays * Wagon (WB310 sport wagon/"Sunny California") * NOT AVAILABLE Van (VB310 regular wagon)
type mounted with shock absorbers * OPTION JDM Wagon, A14/A15 Sedan, A14/A15 Coupe * STANDARD EQUIPMENT for all North America B310 including A12A cars
3-piece bumpers are much heaver, with a complex cross-section.
3-piece pointed end | 1-piece diagonal-cut end
62022-H8905 Round Eye
Round Eye (late) 62022-H8905. W/O rubber strip along top edge.
7901-7909 (JDM WB310)
Japan
#North America - H91 bumper w/o lights and w/overriders
62022-H9936 Square Eye
Square Eye 62022-H9936. Has rubber strip along top edge of front surface.
7910- (square headlight models)
#North America - H99 bumper w/o lights
Blackout
EUROPE, CARRIBEAN: Rubber covered bumpers -- 1-piece Luxe bumpers.
North America
Canada & USA B310 have no lights in bumper (they are in the grille instead). North America was also *only* using the #Three-piece Bumpers for all B310.
1979 (round headlamp) has rubber overriders 1980-1982 (square headlamp) has rubber strip
BUMPER-FRONT CENTER -1179 62022-H9100 62050-H9100 OVER RIDER ASSY-BUMPER 1279- 62022-H9900/62022-H9930 62060-H9900 RUBBER STRIP ASSY-FRONT BUMPER SIDE ASSY-FRONT 62032-H9100 RH, 62033-H9100 LH
1979-1980.5 (round headlamp)
1980.5-1982 has rubber strip instead of protruding overriders
Customized with 1979 bumper on later B310
Parts
Side (end finishers)
BUMPER SIDE ASSY-FRONT
Large Bumper * 62032-H9100 RH * 62033-H9100 LH Small Bumper (GL bumper finishers) * #62032-H8900 RH
62032-H8900 Luxe Finisher
62032-H8900 RH GL bumper finisher
62033-H8900 Luxe Finisher
62033-H8900 LH GL bumper finisher
B310 フロントバンパー エンドフィニッシャー 左
Rear
Small and Large