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Bolton Toilet Repair Parts
By Kohler

Keep your Bolton toilet flushing well with repair parts from PlumbingSupply.com®. We stock a wide variety of replacement toilet parts to help keep your Kohler toilet working like new. Looking for other Kohler toilet parts? Click here.

Kohler one-piece Bolton toiletK-3670
Kohler two-piece Bolton toiletK-3450
Kohler wall hung Bolton toiletK-3475

Toilet Repair Parts for the Bolton Series
One-Piece Model # K-3670

Bolton series repair parts by Kohler

Item # Part # Description Price & Quantity
1 30280 Disc Service Kit - includes disc (51113), nut (51153), disc (51114) Discontinued
2 30679 Flush Valve Kit - Replaced by "will fit" version (replacement parts for the "will fit" canister valve are available here) $110.90 Enter a quantity and
3 30683 Float Valve Kit - includes rod (51081), cap assembly (30452), plunger service kit (30100), plunger assembly (51748), refill tube assembly (39236), vacuum breaker (49119), spacer (49120), lock nut (42396), washer (42398), supply nut (42397) $79.65 Enter a quantity and
4 51748 Plunger Assembly $5.52 Enter a quantity and
5 500195 Complete Trip Lever Assembly - some individual component parts listed below (5a, 5b, 5c) $104.42 Enter a quantity and
5a 30282 Trip Arm Assembly ONLY (included in 500195) Discontinued
5b 77046 Trip Lever Handle with Escutcheon/Sleeve ONLY (included in 500195) $69.23 Enter a quantity and
5c 51170 Trip Lever Handle ONLY - WITHOUT Escutcheon/Sleeve (included in 500195) $41.79 Enter a quantity and
6 1013092 Bolt Caps (2) - White (view more color options) $5.91 Enter a quantity and
7 30281 Attachment Kit - includes 3 screws (51106), 3 attachment kits (51107) Discontinued
8 51103 Gasket Discontinued
9 51105 Rubber Washer Discontinued
10 51162 Float Ball - Replaced by "will fit" version $3.40 Enter a quantity and
Toilet Seat 200E3 Premium Bemis "Will Fit" Round Front Seat - White (view more color options) $51.18
1200E3 Premium Bemis "Will Fit" Elongated Front Seat - White (view more color options) $56.10 Enter a quantity and

Not sure which model toilet you have? Try looking under the toilet tank lid or inside of the toilet tank.


Toilet Repair Parts for the Bolton Series
Model # K-3450 - Tank # K-4505

Bolton toilet repair parts by Kohler

Item # Part # Description Price & Quantity
1 30671 Fill Valve - includes float ball, float rod, nut, cap assembly, plunger assembly, O-ring, cone washer, vacuum breaker, refill tube assembly, lock nut, washer, supply nut $78.75 Enter a quantity and
2 30452 Cap Assembly $21.33 Enter a quantity and
3 51748 Plunger Assembly $5.52 Enter a quantity and
4 39236 Refill Tube & Clip - 9" length $2.96 Enter a quantity and
5 51261 Refill Tube Clip ONLY $3.21 Enter a quantity and
6 42753 Float Ball - Replaced by "will fit" version $3.40 Enter a quantity and
7 89187 Flush Valve - Replaced by 1003068 - includes flapper, valve gasket, tank gasket, washer, nut $22.69 Enter a quantity and
8 1079949 Flapper Assembly - Replaced by GP87449 $8.68 Enter a quantity and
9 53154 Flush Valve Gasket - Replaced by GP1145626 $3.73 Enter a quantity and
10 51487 Tank to Bowl Gasket & Bolt Kit - includes gasket (1), washers (3), 5/16" bolts (3) and nuts (3) $13.84
11 50752 Friction Ring For Flush Valve $1.53 Enter a quantity and
12 50751 Lock Nut $4.44 Enter a quantity and
13 52050 Tank to Bowl Bolt Kit - includes 5/16" bolts (3), metal washers (3), rubber washers (6), and nuts (3) $10.97 Enter a quantity and
14 30448 Front Mount Trip Lever - Chrome $27.26 Enter a quantity and
15 52048 Bolt Caps (2) - White (view more color options) $5.91 Enter a quantity and
Toilet Seat 200E3 Premium Bemis "Will Fit" Round Front Seat - White (view more color options) $51.18
1200E3 Premium Bemis "Will Fit" Elongated Front Seat - White (view more color options) $56.10 Enter a quantity and

Toilet Repair Parts for the Bolton Series
Wall Mount Model # K-3475 - Tank # K-4509

Wall mount Bolton toilet parts diagram

Item # Part # Description Price & Quantity
1 30671 Fill Valve - includes float ball, float rod, nut, cap assembly, plunger assembly, O-ring, cone washer, vacuum breaker, refill tube assembly, lock nut, washer, supply nut $78.75 Enter a quantity and
2 30452 Cap Assembly $21.33 Enter a quantity and
3 51748 Plunger Assembly $5.52 Enter a quantity and
4 39236 Refill Tube & Clip - 9" length $2.96 Enter a quantity and
5 51261 Refill Tube Clip ONLY $3.21 Enter a quantity and
6 42753 Float Ball - Replaced by "will fit" version $3.40 Enter a quantity and
7 89187 Flush Valve - Replaced by 1003068 - includes flapper, valve gasket, tank gasket, washer, nut $22.69 Enter a quantity and
8 1079949 Flapper Assembly - Replaced by GP87449 $8.68 Enter a quantity and
9 53154 Flush Valve Gasket - Replaced by GP1145626 $3.73 Enter a quantity and
10 51487 Tank to Bowl Gasket & Bolt Kit - includes gasket (1), washers (3), 5/16" bolts (3) and nuts (3) $13.84
51487 Tank to Bowl Gasket ONLY $13.84 Enter a quantity and
11 50752 Friction Ring For Flush Valve $1.53 Enter a quantity and
12 50751 Lock Nut $4.44 Enter a quantity and
13 52050 Tank to Bowl Bolt Kit - includes 5/16" bolts (3), metal washers (3), rubber washers (6), and nuts (3) $10.65 Enter a quantity and
14 30448 Front Mount Trip Lever - Chrome $27.26 Enter a quantity and
Not Shown 52048 Bolt Caps (2) - White (view more color options) $5.91 Enter a quantity and
Toilet Seat 200E3 Premium Bemis "Will Fit" Round Front Seat - White (view more color options) $51.18
1200E3 Premium Bemis "Will Fit" Elongated Front Seat - White (view more color options) $56.10 Enter a quantity and

Related Items & Information



Frequently Asked Questions

Q. "Is there a complete replacement available for the Kohler 30679 canister style flush valve"
A.The Kohler 30679 was a canister style flush valve made by Curtin. The Curtin model 50 canister flush valve is still available, and may fit in place of the Kohler 30679. Please review these dimensions and compare to your existing valve to confirm it's a good replacement for your Kohler toilet : View dimensions.

Q. "How do I find my Kohler model number?"
A. For our customers' convenience, we list both the model number and the tank number of the Kohler toilets we offer parts for. If you already know your model number, that's great - but oftentimes this information won't be available to you. What you'll need to do then is look for the TANK number, which is right where you'd expect it to be on the inside of your toilet tank. Grab a flashlight, carefully remove your tank lid, place your lid somewhere safe, and look around inside your toilet tank for a 4-digit number beginning with either a 3 or a 4. Certain specialty toilets may have a 5-digit number starting with a 1. The number will be either molded into the porcelain or stamped on in blue or black ink. This is your tank number and you can use it to find the parts you need to fix your toilet.

Kohler toilet tank number molded into porcelain tank
Kohler toilet tank number stamped onto side of tank

Q. "There are letters and/or numbers after the model number inside my Kohler toilet tank - what do those mean?"
A. Kohler offers many variations of almost all their toilet models, and has experimented in the past with many different features. Typically, numbers (or a single letter/number combination like K4 or Y2) after the 4- or 5-digit model number indicate the color code for your toilet. If your model number is followed by letters, those usually have different meanings to indicate the features of your toilet or will indicate that you have a specialty Artist Edition toilet.


Code Meaning
AA Water-Guard toilet flushing system - Old flush system that has long been discontinued
EL Toilet with Elongated Bowl
K Eco Lite tank
L Bedpan lugs or a Pressure Lite flush system - Both older features that have been discontinued
RA Tank with RIGHT side trip lever
T Tank locking system (vandal-resistant feature usually on commercial toilets)
U Insuliner® lined toilet tank
UR Insuliner® lined toilet tank with RIGHT side trip lever
X Peacekeeper® seat actuated flushing system - Discontinued
Need a new toilet seat? We offer color-matching toilet seats for almost all the Kohler colors below!
Code Color Name Code Color Name Code Color Name
0 White 02 Spruce Green 03 Lavender
04 Suez Tan 06 Skylight 07 Black
08 Cerulean Blue 10 Peachblow 12 Jersey Cream
17 Teal 18 Sunrise 21 Avocado
24 Expresso 31 Harvest Gold 32 New Orleans Blue
33 Mexican Sand 34 Fresh Green 35 Pink Champagne
40 Parchment 41 Country Grey 42 Aspen Green
44 Swiss Chocolate 45 Wild Rose 47 Almond
49 French Vanilla 52 Navy 53 Raspberry Puree
55 Innocent Blush 56 Tender Grey 58 Thunder Grey
68 Heron Blue 71 Seafoam Green 85 Merlot
89 Desert Bloom 95 Ice Grey 96 Biscuit
97 Timberline 98 Chamois G9 Sandbar
K4 Cashmere NG Tea Green S1 Biscuit Satin
S2 White Satin W2 Earthen White Y2 Sunlight

Have questions about toilet parts or toilet repair?

Toilet Repair Information & FAQs

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