Bancroft Toilet Repair Parts
By Kohler

Keep your elegant Bancroft toilet in perfect shape with replacement parts from PlumbingSupply.com®. Whether you need a flush valve or a fill valve, or even a gasket, we have the repair parts to help your toilet work like new. Looking for other Kohler toilet parts? Visit our page.

Bancroft toilet

Kohler Toilet Replacement Parts for the Bancroft Series
Model # K-3487 - Tank # K-4633

Bancroft toilet parts diagram by Kohler

Item # Image Part # Description Price & Quantity
1 kohler fill valve gp1083167 GP1083167 Class 5 Fill Valve - includes top assembly, seal diaphragm, refill tube, shank washer, locknut, washer, supply nut $24.72 Enter a quantity and
kohler fill valve gp1138930 GP1138930 Fill Valve - includes top assembly, seal diaphragm, shank washer, locknut, washer, supply nut (refill tube not included - order separately below) $27.14 Enter a quantity and
2 kohler cap assembly 1057940 1057940 Top Assembly $8.62 Enter a quantity and
3 kohler seal diaphragm 83143 83143 Seal Diaphragm $4.99 Enter a quantity and
4 kohler refill tube 1033209 1033209 Refill Tube $2.65 Enter a quantity and
5 kohler clip 51261 51261 Refill Tube Clip $3.71 Enter a quantity and
6 kohler flush valve kit 1042499 1042499 3" Class 5 Flush Valve - includes flapper, flush valve gasket, lock nut & tank to bowl gasket $28.77 Enter a quantity and
maxclaw small rubber strap wrench Tool Multi-Purpose Strap Wrench - for easier flush valve removal and installation $12.74 Enter a quantity and
7 kohler flapper 1078441 1078441 Flapper - Replaces 1042313 $16.18 Enter a quantity and
korky flapper 3010bp 3010BP "Will Fit" Replacement Flapper - Proudly made in the USA USA flag button $14.98 Enter a quantity and
8 kohler seal 1097686 1097686 Flush Valve Gasket - Replaces 1016219 $4.13 Enter a quantity and
9 kohler tank plate 1014065 1014065 Tank Plate $10.98 Enter a quantity and
10 kohler flush valve nut 1014580 1408436 (old #1107006 & old #1014580) 3" Flush Valve Nut $3.29 Enter a quantity and
11 kohler gasket 1018165 1018165-F Tank to Bowl Gasket - Replaces 1018165-A $6.87 Enter a quantity and
12 kohler tank accessory pack 1024390 1024390 Tank To Bowl BOLT Kit $6.76 Enter a quantity and
13 kohler trip lever 1042212 chrome 1042212 Side Mount Trip Lever - Chrome $23.25 Enter a quantity and
kohler trip lever satin nickel 1042212 Side Mount Trip Lever - Polished Nickel $38.73 Enter a quantity and
14 kohler bolt caps white 1013092-0 1013092 Bolt Caps (2) - White (view more color options) $7.50 Enter a quantity and
Toilet Seat bemis affinity premium elongated toilet seat 1200e4 1200E3 Premium Bemis "Will Fit" Elongated Front Seat - White (view more color options) $67.91 Enter a quantity and
If your existing fill valve stem is GRAY with a small insert, use GP1138930.
If your existing fill valve stem is BLACK with a large insert, use GP1083167. View this fill valve comparison to help you choose

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


Related Items & Information



Frequently Asked Questions

Q. "How do I find my Kohler model number?"
A. For our customers' convenience, we often 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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